Final palace complex of the last of 29 Kokand rulers.

This "tower of death" has acted as an observatory, a religious hub, and an executioner's lair.

Unusual building appears to be haphazardly built from randomly piled bricks.

A shrine of fire worship built on top of a natural flame.

Mysterious hillside with a continuously burning natural fire.

The most visited pilgrimage site in Armenia once held a saint in a pit for 13 years.

A geological oddity topped with a 2,000-year-old pagan temple.

This Armenian monastery was carved out of cliffs and named after the spear used to stab Jesus.

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

Resonant stone, that has been played since prehistoric times.

A Turkish ghost town abandoned in a population exchange with Greece.

Roman ruins, natural methane fires and a lovely beach.