The Ningwu Ice Caves in Shanxi Province, China, are a unique natural wonder formed around 3 million years ago. Unlike other caves, they remain frozen year-round due to their natural shape, which traps cold air. The caves are open to the public, featuring a maze of ice stairs and bridges. Established as a National Park in 2005, they are illuminated with colorful lights, enhancing their grandeur.

What makes the Ningwu Ice Caves a natural wonder?

• They are located in a desert.

• They are made entirely of crystal.

• They feature icicles, ice falls, and stalagmites.

• They are the largest caves in the world.

How old are the Ningwu Ice Caves believed to be?

• Around 300,000 years old

• Around 3,000,000 years old

• Around 1,000 years old

• Around 10,000 years old

Why do the Ningwu Caves remain frozen all year?

• They are covered in snow year-round.

• Their natural shape traps cold air inside.

• They are artificially cooled.

• They are located at the North Pole.

What is the maximum temperature inside the Ningwu Caves?

• 32°F

• 50°F

• 70°F

• 90°F

When were the Ningwu Caves established as a National Park?

• 2010

• 2005

• 2000

• 1995