Nepal is home to ten UNESCO World Heritage Sites, each with its unique cultural, historical, and architectural significance. Here are the ten UNESCO World Heritage Sites of Nepal:

1. Kathmandu Durbar Square: Located in the heart of Kathmandu, Kathmandu Durbar Square is a complex of ancient palaces, temples, and courtyards that date back to the 12th century. It was the royal palace of the Malla and Shah kings of Nepal.

2. Patan Durbar Square: Located in the city of Lalitpur, just south of Kathmandu, Patan Durbar Square is a royal palace complex that is home to several temples, palaces, and courtyards. It showcases Newar architecture and art.

3. Bhaktapur Durbar Square: Bhaktapur is a medieval city located east of Kathmandu. The Durbar Square here is a well-preserved complex of temples, courtyards, and palaces that date back to the 12th century.

4. Swayambhunath Stupa: Also known as the Monkey Temple, Swayambhunath is a Buddhist stupa located atop a hill in Kathmandu. It is one of the most sacred Buddhist sites in Nepal and is believed to date back to the 5th century.

5. Boudhanath Stupa: Boudhanath is a Buddhist stupa located in the town of Boudha, on the outskirts of Kathmandu. It is one of the largest stupas in the world and is an important pilgrimage site for Buddhists.

6. Changu Narayan Temple: Located on a hilltop east of Kathmandu, the Changu Narayan Temple is a Hindu temple dedicated to Lord Vishnu. It is one of the oldest temples in Nepal and dates back to the 4th century.

7. Lumbini: Lumbini is the birthplace of Lord Buddha and is located in the Terai region of Nepal. It is a UNESCO World Heritage Site and is one of the most important pilgrimage sites for Buddhists.

8. Sagarmatha National Park: This is a national park located in the Himalayas in eastern Nepal. It is home to several peaks, including Mount Everest, the highest peak in the world. The park is also home to several rare and endangered species of flora and fauna.

9. Chitwan National Park: Chitwan National Park is located in the Terai region of Nepal and is home to several endangered species, including the Bengal tiger, one-horned rhinoceros, and the Asian elephant.

10. Pashupatinath Temple: Located on the banks of the Bagmati River in Kathmandu, Pashupatinath is a Hindu temple dedicated to Lord Shiva. It is one of the most important pilgrimage sites for Hindus from around the world.

The Kathmandu Valley: The Kathmandu Valley is a cultural and historical region that encompasses the three royal cities of Kathmandu, Patan, and Bhaktapur. It is home to several UNESCO World Heritage Sites, including the Durbar Squares, Pasupatinath, Swayambhunath, and Boudhanath.

These ten UNESCO World Heritage Sites of Nepal are a testament to the country’s rich cultural and historical heritage and attract thousands of tourists from around the world each year.