Nepal consists of altogether four World Heritage Sites in the list of UNESCO. Here are the names and description of those sites:

1. Kathmandu Valley with the seven groups of monuments and buildings:

• Hanuman Dhoka ( kathmandu) :

Kathmandu Durbar Square also known as Hanuman Dhoka square is one of the major attractions in Kathmandu Valley. Most of the cultural centers of Nepal are concentrated around the Kathmandu valley; among those cultural sites, the important one is the Hanuman-dhoka Durbar Square. The name Hanuman-dhoka Durbar came from the statue of Hanuman , established by the King Pratap Malla at the entrance of the royal palace in 1672 A.D. Storeyed residence built by King Prithvi Narayan shah in 1770,is called Basantapur Durbar(palace). The whole complex is also known as Kathmandu Durbar Square. Located at the heart of ancient city in Kathmandu it is srounding both Hindu and Buddhist temple. Most of them are built in the pagoda style embellished with intricately carved exteriors as well as Most of the buildings we see here date from 15th to 18th century . The Durbar Square, with its old temples, palaces, epitomizes the religious and cultural life of the people. The major Interesting things to see here are "Kumari (The Living Goddess) Gar" , Mahadev Temple, Shiva Parvati Temple, Bhagwati Temple, Old palace, Saraswoti temple, Krishna Octangular Temple, Big drums, Kal Bhairav, Jagannath Temple, and Taleju Temple.

The oldest of all the three cities of Kathmandu valley. It is the best known for its artistic heritage. It is probably one of the oldest Buddhist City in the world. The city is situated on a plateau across Bagmati River. Another name of Patan, is Lalitpur. The city is surrounded by 4 Stupas in 4 corners of Patan, one at each corner. These stupas are said to have been built by the famous Emperor Ashoka.

The former royal palace complex is the center of Patan's religious and social life and houses a museum containing an array of bronze statues and religious objects. There are three main courtyards or chowks, Named as central Mul Chowk, Sundari Chowk and Keshav Narayan Chowk in the square.

Another eye catching place in Patan Durbar is the Hiranya Varna Mahavihar,
Located inside kwabadehul, this three- story golden pagoda of Lokeshwar (lord Buddha) was built in the twelfth century by king Bhaskar Verma. It is famous as the golden temple. Inside the upper story of the pagoda, are the golden images of lord Buddha and a large prayer wheel. 

Like Hiranya Varna Mahavihar, here are the list of famous places in Patan.

Golden Window
This was specially built by King Siddhi Narasingha malla. His devotion to Lord Krishna as well as the Buddhist God of compassion Karunamaya Lokeshwar is a famous episode in Nepalese history of religion.

Mahabouddha Temple
This temple of Buddha built interestingly in the Hindu Shikara style- has five golden pinnacles. They are all in a stupa shape very symbolic of five basic elements. 

Golden Temple
This golden temple of Buddha in Patan is the oldest richest and most famous monument indeed. It was built 12th century is known for its beautiful gold works shining very graciously.

Krishna Temple
The Famous Temple Which was built in the 17th century, the temple of Lord Krishna holds a commanding position in the palace complex of Patan. It is the only temple in Nepal to have 21 shrines and is completely made of stone. Most of the important scenes from the ancient Hindu epics the Ramayana and the Mahabharata, have been engraved on its friezes.

• Bhaktapur Durbar square (Bhaktapur) :

the city is also known, is a museum of medieval art and architecture with many examples of sculpture, woodcarving and colossal pagoda temples consecrated to different gods and goddesses. It is a conglomeration of pagoda and shikhara-style temples grouped around a fifty-five window palace of bricks and wood. The square is one of the most charming architectural showpieces of the Valley as it highlights the ancient arts of Nepal. The golden effigies of kings perched on the top of stone monoliths, the guardian deities looking out from their sanctuaries, the wood carvings in every place-struts, lintels, uprights, tympanums, gateways and windows-all seem to form a well-orchestrated symphony. 

The major attraction of Bhaktapur Durbar Square are:

55 Window Palace:
This is the main architectural structure dominating the entire Durbar Square. This magnificent monument was built in 15th century AD. Seated on a huge column top in a position of prayer to God is King Bhupatindra Malla.

Golden Gate:
This is the main entrance to the palace. The craftsman who worked on this wonderful gate must be from Heaven. It is an eternal beauty in itself.

Lion's Gate:
This gate has two beautiful stone statues of Hindu deities installed on its either side. It is said that the hands of the artisans who produced this were cut off immediately after he gave a finishing touch to them. A jealous Bhadgaon King did this so that the artisan could not produce any more of such arts.

Mini Pashupati Temple:
Some people call it a royal dream temple. Folklore says - once a Bhadgaon King who was a great devotee to Lord Pashupati had a dream in which Lord told the king to build a temple for Pashupati right in front of this palace.

Vatsala Temple:
This temple dedicated to a mother goddess is full of intricate works on stone. This temple is known for its dog-barking bell. This bell is believed to produce a death knell when it is rung up.

Nyatapola Temple:
This is the most famous pagoda of Nepal. Nyatapola in Newari language means fie tires - the symbolic of five basic elements. This is the highest pagoda of Nepal ever built with such architectural perfection and artistic beauty. This temple is dedicated to Sidhilaxmi, the tantric goddess of supreme power and success.

Bhairava Nath Temple:
This temple is dedicated to Bhairava the God of terror and death.

• Swayambhunath Stupa: 

Swayambhunath ( Monkey Temple) is an ancient religious complex atop a hill in the Kathmandu Valley, west of Kathmandu city. It is one of the most sacred Buddhist sites in Nepal, second only to the great Boudhanath stupa to the east of Kathmandu, and a major tourist attraction. The Swayambhunath Stupa is a golden spire crowning a conical wooded hill. It is the most ancient and enigmatic of all the holy shrines in Kathmandu Valley. It has a lofty white dome and a glittering golden spire that are visible from all sides of the valley. Stupa is surroundings consists of chaityas, temples, painted images of deities and numerous other religious objects. Located on a hill on the outskirts of Kathmandu, the temple affords magnificent views over the city and on a clear day to the mountains beyond. At the heart of the temple complex is the stupa, topped by the painted eyes of Buddha, surrounded by prayer wheels and numerous smaller temples.

Amazing to look at, the architectural beauty of Swayambunath Temple gives way to the feelings of reverence and adoration. The stupa consists of a dome at the base and a cubical structure with eyes of Buddha looking in all the four directions. There are pentagonal Toran present above each of the four sides with statues engraved in them. Behind and above the torana there are thirteen tiers. Above all the tiers, there is a small space above which the Gajur is present. According to Swayambhu Puran, the entire Kathmandu valley was once filled with an enormous lake, out of which grew a mystical Lotus. The valley came to be known as Swayambhu, meaning 'Self-Created' or 'Self-Existent'. The Bodhistava Manjushri had a vision of the lotus at Swayambhu and traveled there to worship it.

• Pashupatinath Temple:

Pashupatinath, or Pashupati, is a Hindu temple on the banks of the Bagmati River in Deopatan, a village 3 km northwest of Kathmandu. It is dedicated to a manifestation of Shiva called Pashupati (Lord of Animals). It attracts thousands of pilgrims each year and has become well known far beyond the Kathmandu Valley. The temple is barred to non-Hindus, but a good view of the temple can be had from the opposite bank of the river.

It is not known for certain when Pashupatinath was founded. Tradition says it was constructed by Pashupreksha of the Somadeva Dynasty in the 3rd century BC, but the first historical records date from the 13th century. The ascetic Pashupata sect was likely related to its foundation.

Pashupati was a tutelary deity of the ancient rulers of the Kathmandu Valley; in 605 AD, Amshuvarman considered himself favored by his touching of the god's feet.

By the later Middle Ages, many imitations of the temple had been built, such as in Bhaktapur (1480), Lalitpur (1566) and Benares (early 19th century). The original temple was destroyed several times until it was given its present form under King Bhupalendra Malla in 1697.

According to a legend recorded in local texts, especially the Nepalamahatmyaand the Himavatkhanda, the Hindu god Shiva once fled from the other gods in Varanashi to Mrigasthali, the forest on the opposite bank of the Bagmati River from the temple. There, in the form of a gazelle, he slept with his consort Parvati. When the gods discovered him there and tried to bring him back to Varanasi, he leapt across the river to the opposite bank, where one of his horns broke into four pieces. After this, Shiva became manifest as Pashupati (Lord of Animals) in a four-face (chaturmukha) linga.

• Changu Narayan:

Located on a magnificent hill top commanding a fantastic view of Kathmandu valley, Changu Narayan- the temple of Lord Vishnu- lies 6km north of Bhaktapur. The temple is full of magnificent art work in metal and wood. In fact, it is one of the finest examples of Nepalese history found in the temple premises during the reign of the Lichhavi King Manadev dating back to 464 AD. It is the oldest temple in Kathmandu valley History shows that Changu had already been established as a sacred site in the 3rd century AD. The present structure was probably constructed in the 17th century, and is the  though older elements have been incorporated during the restorations. The pagoda style temple has several master pieces of 5th and 12th century Nepalese art. 

The myth behind the conception of the Changu Narayan Temple portrays the religious significance and importance of the place. According to a legend, Lord Vishnu beheaded a Brahmin thinking it to be a demon and only discovered it later that he had committed a heinous crime. He then wandered on earth on his mount, the ‘Garuda’ eventually descending on the hill at Changu. There he lived in anonymity surviving on milk stolen from a cow belonging to a hermit sage called Sudharsan. When Sudharsan noticed about the stolen milk, he attacked and beheaded Lord Vishnu which freed Lord Vishnu from his sins. Ever since that day, the site has been held sacred and the temple has been revered.

Some of the important sculptures here are:

Vishwo Roop, Vishnu Vikaratna, Vishnu mounted in his vehicle Garuda.

Garuda Idol:
Inside the Changunarayan temple is a esteemed figure of Garuda. The statue is offered sweets by the devotees every year on Nag Panchami. This is done in remembrance of the epic struggle with the great snake Taksaka. The drops of moisture, believed to be effective against diseases such as leprosy and ulcers, are collected by the priests.

King Bhupendra Malla Statues:
Statues of King Bhupalendra Malla of Kathmandu and his mother can also be seen in a shrine. Bloody fighting characterised their politics during the 17th century but both were generous when it came to revering the gods.

Vishnu Sculpture:
To the north of the temple is a sculpture of Lord Vishnu seated on Garuda (Garudasana Vishnu). This image appears on the Nepalese 10 rupee note. Vishnu sculpture dates back to 9th century.

Vishwaroop:
Vishwaroop sculpture, dating back to 8th century A.D., presents Lord Vishnu in his universal form. 

Vishnu Vikrant:
The stone idol, harking back to the 8th century A.D, is of the most powerful form of Lord Vishnu. It is related to the Hindu legend of Vaman, an incarnation of Vishnu, who measured space with feet.

Vishnu Riding Garuda:
This figure of Vishnu mounting Garuda, the mythical bird, dates back to the 10th century A.D.

Narsimhha Vishnu:
This form of Lord Vishnu, the Narsimha, is in half human and half lion form.

• Baudhanath :

Boudhanath Stupa (or Bodnath Stupa) is the largest stupa in Nepal and the holiest Tibetan Buddhist temple outside Tibet. It is the center of Tibetan culture in Kathmandu and rich in Buddhist symbolism. The stupa is located in the town of Boudha, on the eastern outskirts of Kathmandu.

Bodnath was probably built in the 14th century after the Mughal invasions; various interesting legends are told regarding the reasons for its construction. After the arrival of thousands of Tibetans following the 1959 Chinese invasion, the temple has become one of the most important centers of Tibetan Buddhism. Today it remains an important place of pilgrimage and meditation for Tibetan Buddhists and local Nepalese, as well as a popular tourist site.

2.  Lumbini ( The Birth Place of Lord Buddha) :

This spiritual destination paramount's with historical, cultural and spiritual values. Maya Devi Temple, Ashoka Pillar, the Holy Pond and many other Buddhist monasteries built by Myanmar, Thailand, Korea, China, Japan, and Vietnam have impeccable architectural values. 

One of the last populations of single-horned Asiatic rhinoceros lives in the park, which is also among the last refuges for the Bengal tiger. Tourists usually do the elephant trek to see the rhinoceros living in the park and do guided walks into the park. 

The Chitwan valley consists of tropical and subtropical forests. Sal forests cover 70 percent of the park. Sal leaves are used locally for plates in festivals and religious offerings. Grasslands cover 20 percent of the Park. There are more than 50 different types of grasses, including the elephant grass , renowned for its immense height. It can grow up to 8m in height. The park is home to more than 50 mammal species, over 525 birds, and 55 amphibians and reptiles. The endangered fauna found in the Park are: One-horned rhinoceros, Gaur. Royal Bengal tiger. Wild elephant, Four horned antelope, Pangolin, Golden monitor lizard, Python, etc. Bengal florican. Lesser florican, Giant hornbill, Black stork, White stork, etc.

4. Sagarmatha National-park :

Sagarmatha is an exceptional area with dramatic mountains, glaciers and deep valleys, dominated by Mount Everest, the highest peak in the world (8,848 m). Several rare species, such as the snow leopard and the lesser panda, are found in the park. The presence of the Sherpas, with their unique culture, adds further interest to this site.

Sagarmatha National Park covers the highest peak in the world, Mount Everest at 8,848 m, and its surrounding high mountain ranges. It is an area of geologically young mountains with sharp peaks and glaciers. The Dudh Kosi river originates here. Gokyo Valley (a RAMSAR site) has a number of lakes.

The park is located in north-eastern Nepal, in the Solo-Khumbu region.
It encompasses an area of 1,148 km² and ranges in elevation from its lowest point of 2,845 m at Jorsalle to 8,848 m at the summit of Everest. Most part of the land is barren, with grazing lands on the lower elevations. There are relatively few mammal species due to evolutionairy factors.

Sagarmatha National Park is also home to about 3000 Sherpas. They moved there from Tibet some 500 years ago and keep up their distinct traditions and Tibetan-Buddhist religion. 

Endangered animals residing in this park are Snow Leopard, Musk Deer, Wild Yak, Red Panda and Himalayan Black Bear.

Large Mammals : Big mammals commonly seen in the park are the Himalayan Tahr and Musk Deer.