A collection of 100 brains preserved in jars on the UT campus.

The Hanshin Expressway goes right through its 5th, 6th, and 7th floors.

The third-tallest statue in the world depicts the "Buddha of Infinite Light," complete with observation deck in his chest.

The largest underground lake in Europe.

Take an underground boat ride through a former hydraulic raceway that was built in the late 19th century.

This coffee shop lies hidden beneath a historic church.

Peek into a cave of giant, glimmering crystals.

At this gas station in the middle of the desert, a convenience store has been carved directly into the rock.

The only ski tunnel in North America provides easy access to amazing snow and beautiful views.

A walk through the historic city center, under the streets of Seattle.

This massive metal sculpture in the shape of a folded paper airplane overlooks a Utah mountain.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

A hidden garden of stones engraved with scriptures, a Joseph Smith Sphinx, all carved by one man.

Some of the freshest vegetables in Seoul are grown in a subway station.

A series of modernist treehouse hotel rooms grace the outskirts of an Arctic forest.

Formerly known as the Malay Quarter, Bo Kaap is a colorfully-painted suburb located in the “Mother City” of South Africa.

A sculpture of a giant hand reaches for the stars in the middle of the Atacama desert.