Resonant stone, that has been played since prehistoric times.

Home to nearly a third of the world's mud volcanoes, Azerbaijan is home to a messy, bubbling, and sometimes explosive landscape.

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

A quirky house created entirely out of glass bottles combines a collector's spirit with an artist's flair.

In oil-rich Azerbaijan, people bathe in the black stuff.

Azerbaijani ghost town, decaying after a war left it an armed forces buffer zone.

Rusting ships sit in a desert where a sea used to be.

This dramatic sea spire is home to the world's rarest insect and is part of the lost continent of Zealandia.

Known for the tunnel that leads visitors to the water.

Running since 1864, this clock has yet to be wound, one of the longest-running science experiments known.

Some of the clearest water anywhere in the world.

Hundreds of bras, blowing in the wind.

Highly spherical boulders on the shores of New Zealand.

One of the world's largest Tesla coils.

The Dalai Lama named this New Zealand landscape the "Spiritual Center of the Universe."

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

This strange geological landscape erupts with sudden bursts of water.

Tubing through a cave lit with glowworms is a magical underground experience.

Deadly scalding and one of the largest hot springs in the world.