One of the world's largest pyramids stands within El Mirador, the "lost city of the Maya."

Volcanically heated hot springs.

This ancient Irish tower could easily have stood in for Rapunzel's prison.

An Iron Age fort on the edge of a seaside cliff offers a glimpse into an ancient, mystical world.

This splendid mosaic embodies ancient Rome's fascination with the exotic allure of Egypt.

Many famous English poets including Elizabeth Barrett Browning are laid to rest at this Swiss-owned cemetery in Florence.

Memorials at a Florence railway station remember the citizens who were deported from Italy and sent to extermination camps.

This cathedral hides a sculpted dog that determines your fate and an unexploded shell from World War II.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.

An impressive century-old, to-scale topographical map of Guatemala.

Climb through the life of a Mexican hero as you ascend a 130-foot statue.

A Mexican Romeo-and-Juliet-esque legend has given this super-narrow alleyway a reputation for romance.

Where layer cakes tower above one’s head and there is never a shortage of icing.

A dark tunnel leads to a striking white crater that seems to be from another planet.

A museum in the former home of Marxist revolutionary Leon Trotsky.

Mexico's astounding mummy museum with "the world's smallest mummy."

A pocket of jungle amidst urban expansion in Panama.

A cemetery full of exquisite statuary, including a monument to a woman some say died of a broken heart.

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

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

This communist country can still appreciate its fragrant past.

Neo-cave art on the macro scale.

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.