The ruins of a medieval monastery built on a perilous slope.

This little medieval church hidden in the center of Yerevan was lost and rediscovered—twice.

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.

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

Nestled in a peaceful valley, this Armenian monastery may have been saved from Mongols thanks to the eyes of God.

Right up until the 20th century this network of man-made caves was the biggest village in Eastern Armenia.

A scenic canyon with thick forests and historic ruins.

An ancient stone fortress considered by many to be the eighth wonder of the world.

Seven beautiful 1,000-year-old rock-cut Buddhist statues.

A Sri Lankan tea factory's ironic take on the Los Angeles landmark.

Known as the most scenic route in Sri Lanka, this train line is steeped in history and offers an unparalleled view of the country.

Huge herds of Asian elephants can be seen walking, bathing, and just chilling at this Sri Lankan park.

To gaze upon the visage of Sri Lanka's biggest Buddha, one must first pass through the Tunnel of Hell.

Pettah's beautiful floating market was once a stinky canal in a sketchy industrial area.

This mesmerizing architectural wonder will take your breath away with its unusual color patterns.

This space rocket-like Buddhist stupa sits atop two giant arches and can be seen from out at sea.

Inside India's oldest mosque, a lamp is said to have burnt for 1,000 years without going out.

This 15th-century mosque is a beautiful blend of Hindu and Islamic architecture.

Deep in the Thar desert, a temple crawling with thousands of holy rats.

A complex of six forts embedded in the Rajasthan hills.

The evocative ruins of a 1,000-year-old hill fort lie within a popular tiger reserve.

These medieval funerary monuments are now home to a colony of critically endangered vultures.

This deserted palace is one of the finest examples of Indo-Islamic architecture in India.