This Armenian monastery was carved out of cliffs and named after the spear used to stab Jesus.

Underground monastery and fortress.

This neon lit Georgian cave claims to hold the boulder Prometheus was chained to.

The cave holds a spectacular array of stalactites and stalagmites, including one shaped like a giant human heart.

Small church on top of a huge rock column.

The largest freshwater lake in northeast India is also the only floating national park in the world.

An Indian forest is being single-handedly planted after its creator was inspired by a slither of dead snakes.

The histories of modern Chinese literature and anti-Japanese resistance collide in this Shanghai park.

The powerful party began with a secret meeting in this shikumen in 1921.

This under-visited temple is nestled within one of Shanghai's traditional shikumen-style residential blocks.

The birthplace of modern China.

Hundreds of caves filled with thousands of centuries-old statues and murals.

Sited in an Inner Mongolian desert are the remnants of an important trade stop along the Silk Road.

China's monumental dinosaur museum featuring an open dig site.

The ancient settlement attracts tourists from all over looking to learn about the Chinese vision of the afterlife.

Comprised of thousands of cave temple carvings this cornucopia of ancient Chinese stone art is unrivaled anywhere in the world.

Not one, not two, but three natural bridges remain in this captivating spot post-sinkhole.

This temple located on a vertical drop of a rocky mountain houses relics from the Song Dynasty.

270 million year-old forest of stone.

For those with no fear of heights: a skywalk 4,700 feet up on a Chinese mountain.

A total of 999 stairs lead visitors through a massive hole in a mountain known as the Gateway to Heaven.

North Korea's massive "hotel of doom."

An impactful museum ensures notorious war crimes disguised as "medical experimentation" won't soon be forgotten.

This ancient subterranean megalopolis is known for the hot oil traps that were installed above each of its entrances.