Giant stone letters dedicated to the founder of Armenia's alphabet.

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

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

This medieval manuscript collection has some of the most obscure and ancient texts in the world.

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

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

More than 10,000 small mirrors cover the curved surface of the world's second-largest solar oven, located in a remote village in Uzbekistan.

The foundation of this ancient stupa dates back to the 1st-century.

A narrow strip of land is home to the tallest migrating dunes in Europe.

Rusting ships sit in a desert where a sea used to be.

One of the most horrible legacies of the Cold War is a site where the Soviet Union tested nuclear bombs on civilians.

A Stalinist prison camp for the wives and children of men accused of betraying the Soviet state is now a memorial museum.

This Soviet-era athletic and recreation facility is the highest ice skating rink in the world.

This unique wooden mosque resembling a Chinese pagoda was said to be built without the use of nails.

Iconic pyramid from famed British architect Norman Foster designed to represent all of the world's religious faiths.

An abandoned Soviet-era mining town in the mountains of South Kazakhstan.

A brilliant turquoise lake in the mountains.

Submerged trees jut ghost-like out of an idyllic turquoise mountain lake.

Home to what was once considered the largest gate in central Asia.

World's oldest and largest space launch facility, once a secret missile testing site.

Touching displays of wishes for peace from the Cold War era.

Looking for a unifying history, Uzbekistan finds its answer in a 14th Century Turco-Mongol conqueror... despite the fact he wasn't Uzbek.

An 18-meter-long sarcophagus of a constantly growing dead prophet.

These "50 Fortresses" have been unearthed in the ancient oasis of Khwarezm.