This small monument marks the divide between the Atlantic and Indian Oceans at the southernmost tip of Africa.

A beautiful viewpoint on the Garden Route overlooking a naturally-occurring outline of Africa.

Centuries before the modern seismograph, Armenian monks measured quakes with this tilting pillar.

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

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

Called the "Armenian Stonehenge," this ring of menhirs pierced with holes may be a prehistoric astronomical observatory.

This series of Armenian caves held the oldest brain, shoe, and winery in the world.

A geological oddity topped with a 2,000-year-old pagan temple.

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

Huge stairway leads to this massive gallery.

These ruins of a Soviet children's railway station have a haunted atmosphere.

This ancient monastery complex was transformed from an island to a peninsula when the lake was partially drained.

This granite mountain is the largest rock in Africa and the second-largest monolith in the world.

The cave holds a spectacular array of stalactites and stalagmites, including one shaped like a giant human heart.

The decaying remains of a once-luxurious Soviet spa town.

A fountain filled with golden statues, celebrating the the ancient kingdom of Colchis.

Underground monastery and fortress.

This extraordinary, multi-pillared monument depicts the fascinating history of Georgia.

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

Unexpected work of street art in a remote Caucasus mountain town.

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

A cylinder monument with a spectacular vista commemorates a friendship that some say never existed.

This modern French ossuary contains the jumbled bones of 130,000 WWI soldiers.

This secret cemetery where no flag is allowed to fly holds the bodies of American soldiers convicted of heinous crimes during WWII.