The central mosque of this Mali town is entirely built from mud.

Charnel house at the foot of Mount Sinai.

The deadliest diving spot in the world is also a stunning geological marvel.

This stunning mass of ice spans 121 square miles and is still growing.

This trio of Australian rock spires may have inspired aboriginal legend or just modern tourism.

Homage to the local produce now serves as a car dealer.

An opal mining town in the middle of Australia where people live, worship, and shop underground.

Ottoman-era houses lovingly preserved.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

This plaza at the end of the world teems with monumental tributes to a problematic history, and laser discs.

On the outskirts of a desert trading village high on the Andean plain, steel giants have been destroyed by salt winds.

Popular tourist destination where witches in dark hats sell dried llama fetuses for good luck.

Death road of Bolivia.

A huge communist-era propaganda monument and mural that offers stunning views of the Mongolian capital.

Sacred Buddhist home of some spiritual monkeys.

The world's highest and most dangerous infinity pool lies at the precipice of Victoria Falls.

More than 200 statues filled with cryptic symbols give this park spot an aura of horror vacui fantasy.

Bizarre Hindu and Buddhist sculpture park.

A white Buddhist temple with a golden restroom.

This bronze sculpture on a former squash court marks the secret origins of the Atomic Age.

Half-sized replica of the Leaning Tower of Pisa built to honor Galileo.

A hollow cement depiction of time's inexorable effect on the human body.

An enormous park-like oasis, full of famous Chicagoans’ graves.

A lush green oasis in the middle of Chicago.