Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The most visited, and possibly most controversial, museum in Germany.

Handcrafted thermal spa washes away each night with the tide.

A galaxy of glowworms—larvae of a gnat—hides deep in the belly of these caves.

Modern art meets modern convenience in possibly the world's most architecturally important public bathroom.

Largest Kauri tree in New Zealand.

Mounds of fine golden sand that can rise nearly 500 feet tall.

Watch the seas clash at the place where according to Maori tradition, the spirits depart for their journey to the afterlife.

A fiery crater has been burning in the Karakum Desert since 1971.