An Amazonian hotel is the ultimate treehouse and provides stilt based accommodation.

A Moroccan getaway in the mountain range that plays the Himalayas' stunt double.

The most peaceful "country" in the Middle East.

Natural time capsule containing an alien ecosystem.

A small town Romanian cemetery filled with darkly humorous gravestones.

Spring that emits water and fire at the same time is said to have remedial properties, and sparked its own religion.

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

Mysterious hillside with a continuously burning natural fire.

Submerged trees jut ghost-like out of an idyllic turquoise mountain lake.

Norway's chilly all ice-instrument festival.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

An Ethiopian "Jerusalem" featuring a church hewn out of a single rock.

Unique pagan culture in three extremely remote mountain valleys.

A seemingly endless landscape of pure salt stretches far across Bolivia.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

One of the world's largest salt caves is filled with fragile salt sculptures, salt rivers, and huge salt megadomes.