The world's longest nonstop reversible cable car soars through spectacular scenery to the medieval Tatev Monastery.

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

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

Monks in the empyreal Alazani River valley have preserved their 1,000-year-old winemaking tradition.

A museum glorifying the life of Stalin, located in the city of his birth.

A cluster of historic bathhouses built on the famed hot springs that gave the Georgian capital its name.

Small church on top of a huge rock column.

Take respite inside this jaw-dropping church while climbing the volcano where Georgia's Prometheus was once chained.

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

Underground monastery and fortress.

A Turkish monastery tucked into a cliff wall.

Mausoleum and Holy Seat of Antiochus I of Commagene.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

These cascading falls resonate throughout the Bulgarian forest.

This historic black and white monastery is one of Bulgaria's architectural jewels.

A preserved oasis with traditional Andalusian-style architecture and beautiful views of the Nile.

5,000 skulls in memorial to those killed by the Khmer Rouge.

One of the biggest markets in Asia, under one of the continent's largest domes.

The largest mosque in Cambodia was built to unite the country's Muslim community but soon sparked division and controversy instead.

This heart-shaped lake near the border of India and Myanmar is deeply rooted in Mizo folklore.

Brace yourself for the slowest, scariest, most spectacular drive, down the Drakensberg Escarpment.

A place to learn about the history and culture of Mexico's largest Anabaptist group.

Stunning ruins of what was once the center of one of the greatest empires in East Africa.

A Jenga-style cylindrical tower of books that appears to go on forever.