In an area known in Bratislava’s postal history, this sculpture sits equipped with a functional postbox.

Launched by Napoleon's soldiers more than 200 years ago, a cannonball remains embedded in the tower wall.

Also known as the Blue Church, the building was consecrated to the daughter of Andrew II.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

The geographical center of Budapest is marked with a 10-foot-tall stylized zero.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

A triumphant marble and bronze fountain depicting a 15th-century Hungarian king and his hunting party.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

Sacred waters rescued from the wrath of a volcano.

The name of this ancient Indonesian temple translates as "Elephant Cave" but it could be more accurately called "The Hellmouth."

This Balinese sea temple is thought to be guarded by the hundreds of monkeys that live around it.

It took 28 years to build this massive statue of the Hindu god Vishnu riding a mythical bird.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

A misnamed well, with a deep dark past.

A towering spire in the fortress of Kalemegdan honors the victorious armies of Serbia during their struggles against the Ottoman Empire.

A Serbian church lit by chandeliers made of weapons.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

This ice cream parlor serves scoops of flavors like rakia, medlar, and poppy seed.

This fortress dates back to the 6th century and is also the site of a controversial abandoned restoration project.

This ancient theater, restored in the 20th century, lives on as a venue for dramatic and musical performances.

A striking symbol of the Bulgarian capital.

Underneath this Byzantinian church lies a necropolis filled with ancient tombs and the ruins of previous churches.