This French colonial post office is arguably the grandest in all of Southeast Asia.

Meant to be a lavish presidential home, the palace became a symbol of the fall of South Vietnam.

Witnesses claim the Virgin Mary statue outside the church once mysteriously shed a single tear.

Artifacts and memories from the Vietnam war, located in a place that experienced it first hand.

A nightmare for the claustrophobic lies hidden in Southeast Asia.

A treasure trove of pathological, forensic, parasitological, and anatomical specimens.

The headquarters of the Mahanikai school of Buddhism, Thailand's largest monastic order.

A white Buddhist temple with a golden restroom.

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

Four antique Baldwin trains are kept on display in the Mal Tiempo train depot.

Cuba's historical trains remind natives of their country's sugary sweet past.

Named after a legendary garden called Eram in southern Arabia, built by order of Shaddad, an Arab king who wanted to compete with Paradise.

A historic trade hub teeming with gorgeous architecture, colorful goods, and vibrant designs.

A dreamy mausoleum honors Persia's most famous poet.

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

17th century mosque for Shah Abbas' harem.

The ancient necropolis houses the immense rock-cut tombs of four Persian kings.

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.

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

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.

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

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.