This abandoned Soviet circus is slowly being restored to its Communist-era glory.

Elaborate mansions built by Roma residents in Soroca to show their success after centuries of discrimination.

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 wine cellar in the world is a 150-mile network of underground caves near the capital of Moldova.

This statue in Plaza San Francisco commemorates a beloved figure from 1950s Havana.

Besides being home to cave paintings and pre-Columbian Cuban archaeological remains, you get to take a boat through this stalactite and stalagmite covered cave.

A colossal statue with a controversial past, forgotten for more than 30 years.

An old slave lookout in Cuba's historic sugar cane fields.

Neo-cave art on the macro scale.

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

This imposing memorial contains the remains of Che Guevara — and 29 other guerrillas who died with him in Bolivia.

The house that birthed The Old Man and The Sea is now a museum devoted to the old man who wrote it.

No one knows the meaning behind this giant sculpture of a nude woman with a fork riding a rooster in Havana.

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.

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

This subterranean disco dance club in a Cuban cave comes with bright lights and a dark legend.

The enigmatic skull gazes out over the ruins of a once-great Mayan city.

This church devoted to Mexico's "dead saint" is a festive celebration of a formerly hidden religious figure.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

An elaborate Mayan city shrouded in alien conspiracy revealed the tomb of Pacal the Great.

High atop a Mexican rainforest mountain, this ancient pyramid once drew pilgrims countries away.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.