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

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

This striking icon of the disputed Republic of Artsakh caused a stir at a Eurovision Song Contest.

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

Mysterious hillside with a continuously burning natural fire.

Rock-hewn monastery complex with hundreds of cave structures tucked away into the mountainside.

This architecturally eclectic fortress witnessed centuries of bloody turmoil, including the massacre of its ruling clan.

These Stalin-era industrial 'death traps' hang lifeless above the city

Small church on top of a huge rock column.

An eerie, little-known Neapolitan museum filled with preserved human remains.

This cathedral hides a sculpted dog that determines your fate and an unexploded shell from World War II.

This church is named for one of the most dramatic tales in the early Christian church.

A centuries-old forgotten underworld lies beneath Malta.

The floor of this spectacular Baroque sanctuary is covered in memento mori.

Week-long block party becomes a competition for the best decorated street.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

Dug as a secret royal escape route, the tunnel became a wartime bomb shelter and dumping ground for vintage cars.

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

This museum is rotten with a century of wax medical deformities.

Pompeii's less famous neighbor is still revealing her secrets.

This medieval city gate is now a blend of the past and the modern world.

San Gennaro, the patron saint of Naples, greets pedestrians between these narrow city streets.

The relics of dozens of martyrs are stored in a single chapel.