A massive collection of petroglyphs dating back some 40,000 years.

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.

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

Mysterious hillside with a continuously burning natural fire.

A unique museum dedicated to culture and artistry of carpet weaving.

This mysterious but iconic tapered tower appears in many Azeri fairytales and legends.

Ancient barriers wrap around what was once an important stop along the Silk Road.

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

Controversially restored in the 1970s, this giant 15th-century mosque is shrouded in legend.

The Avenue of Mausolea is a series of grand palatial tombs.

An underground world of gorgeous, palatial metro stations designed as a nuclear shelter complex.

Once a luxurious flagship of the Soviet Union, this Brutalist structure remains a landmark of Tashkent’s communist past.

The oldest preserved Triumphal Arch in Northern Italy

Wedged between streets and buildings, this ancient Roman theatre could seat 7000 spectators.

Built in the aftermath of a devastating earthquake, this cathedral is one of the finest examples of Sicilian Baroque architecture.

A memorial to the atrocities of the People's Socialist Republic of Albania.

What happens when you cross a mayor and a painter?

Hundreds of thousands of concrete bunkers crowd Albania long after the fall of Communism.

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

Once a safe haven for locals engaged in blood feuds, this 400-year-old fortified tower is now a museum showing what life was like for those lying in wait within its walls.

People who drive past Bedworth on the A444 bypass often wonder about the origins of this tower

A lesser-known World Heritage Site with an amazing Byzantine style mosaic of Jesus on the semi-dome of the apse

The remains of the medieval city walls that once protected the Genoese quarter of Constantinople