This series of Armenian caves held the oldest brain, shoe, and winery in the world.

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

The most visited pilgrimage site in Armenia once held a saint in a pit for 13 years.

She asked for a potato cellar and over the next 23 years he gave her a network of holy caves.

Right up until the 20th century this network of man-made caves was the biggest village in Eastern Armenia.

A scenic canyon with thick forests and historic ruins.

An abandoned amusement park hints at the twisted history of the Newfoundland Railway.

A crumbling cliffside ruin hidden in the woods.

An abandoned Victorian-era amusement park is rusting away amidst luxury houses.

The world's first hotel built in an abandoned water-filled quarry.

One of the world's largest ice festivals dazzles visitors for over a month with radiant sculptures and carvings.

Mirrored floors and arched shelves create the illusion of an infinite tunnel of books.

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

These layered sandstone mountains in China look like they are made of pressed crayons.

This psychedelic tourist trap is a leisurely descent into madness.

A canvas of crops grow from vibrant red soil in this terraced farmland.

The world's longest outdoor escalator takes visitors to the top of China's largest dam and is also shaped like a dragon.

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

This abandoned fishing settlement may well be the greenest village in the world.

Intensely colorful calcite pools in Southern China.

A part of the world's largest marsh seems to be growing bright red Martian grass.

A fifth-century temple improbably built into the side of a cliff.

The village's cobblestone streets are lined with shops displaying exquisite copper craftsmanship.

What might be the largest completely Jewish town in the world outside of Israel now faces dwindling numbers and empty streets.