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

She asked for a potato cellar and over the next 23 years he gave her a network of holy caves.

Named after a legendary garden called Eram in southern Arabia, built by order of Shaddad, an Arab king who wanted to compete with Paradise.

Mirrors and glass shards cover every inch of this arrestingly beautiful mosque.

A spectacular rainbow of stained glass makes the "Pink Mosque" one of the most beautiful in Iran.

A dreamy mausoleum honors Persia's most famous poet.

The palace of the King of Kings, burned by Alexander the Great.

Marked by the hand of the explorer Henry Morton Stanley.

The ancient necropolis houses the immense rock-cut tombs of four Persian kings.

This 17th-century structure is a beautiful testimony to traditional Persian architecture

These little castles each held thousands of pigeons.

The cathedral stands in New Jufa, Isfahan's Armenian quarter that was established in 1606.

17th century mosque for Shah Abbas' harem.

A historic trade hub teeming with gorgeous architecture, colorful goods, and vibrant designs.

One of the holiest Shi'i shrines in Iran honors the life and death of a learned noblewoman who became a saint.

The sacred shrine of the Yazidis.

An ancient sanctuary that has long been a holy site for the Chaldean Christian Church.

An ancient fortified mound raised over the millennia from settlements built one on top of the other.

This hunter-gatherer architecture is believed to be the oldest religious complex known.

A sacred lake with thousands of sacred carp and a biblical history.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

The alleged house of the Virgin Mary is tucked away in a park and nature preserve on Mt. Koressos in Turkey and is holy to both Catholics and Muslims alike.

This crumbling medieval basilica once attracted pilgrims by the thousands to collect a miraculous dust that formed above the saint's tomb.

The ancient latrines of the Greeks, in all their public glory.