Once a favorite playground for the world's most illustrious guests, Hotel Nacional's secret weapons and bunkers reveal a more menacing side to its golden history.

After the Cuban Revolution, the famous rum company had to leave their swanky headquarters behind.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

Castro's communist ice cream mothership has been serving five-scoop "salads" for over 50 years.

A colorful narrow alley in Cuba is full of street art and sculptures made of found objects.

In terms of history and architecture, this is one of the most remarkable cemeteries in the world.

This striking icon of the disputed Republic of Artsakh caused a stir at a Eurovision Song Contest.

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

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

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

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

At less than four inches in height, this iconic fictional character is the smallest public statue in all of Moldova.

Seventy-five miles of limestone caves host more than a million bottles of wine beneath a sleepy Moldovan town.

A forgotten remnant of the Soviet Union, Transnistria is an unrecognized country hidden behind a heavily militarized border between Moldova and Ukraine.

The largest Roman amphitheater in the Balkans once held over 20,000 people, but managed to lay hidden for hundreds of years.

What happens when you cross a mayor and a painter?

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

The sacred shrine of the Yazidis.

This ancient burial site is believed to be one of the first earthquake-protected structures in the world.

A dreamy mausoleum honors Persia's most famous poet.

17th century mosque for Shah Abbas' harem.

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

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

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.