Legend says this sacred tree was a gift from goddess Athena.

The oldest standing Byzantine church in Athens is tucked within a monastery in the middle of an upscale shopping district.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

Where commuters walk through remnants of an ancient Greek necropolis.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

The largest masonic lodge in Cuba.

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

Standing in this historic plaza is a statue representing one of Cuba's most iconic literary characters.

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

This communist country can still appreciate its fragrant past.

His music once banned in Communist Cuba, John Lennon is now immortalized in bronze by Castro, who considers Lennon a "fellow dreamer."

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

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

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

Neo-cave art on the macro scale.

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

On the Pakistan-India border the militaries perform an elaborate theater of aggression each and every night.

This peaceful Sikh gurudwara serves around 50,000 free meals every day within its gilded walls.

Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

The fishing boats that moor in this small lagoon enter and leave through a tunnel to the sea.

This unique building in the main square stands out among the city's typically Baroque architecture.

This spectacular dome managed to survive after being bombed in World War II, in an event known as the "Miracle of Mosta."

The floor of this spectacular Baroque sanctuary is covered in memento mori.