This curious, round temple is the oldest still-standing marble building in Rome.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

This large, circular tomb is the final resting place of the first emperor of Rome.

This hydrochronometer was invented by a Dominican monk and is a prime feature in this garden.

A monumental fountain in Rome features a large statue of Moses that has been criticized for centuries.

On the shores of Lake Garda, the ruins of a Roman villa that allegedly belonged to the poet Catullus.

One of the most well-preserved castles in Italy also contains a rare medieval example of a port fortification.

These 12th-century catacombs carved into a mountainside were a place of mysticism and Christian hermitages.

Also known as Uncle Karl, the beloved bronze copper keeps a watchful eye on St. Stephen’s Basilica while people rub his lucky belly.

A diminutive statue that was inspired by the sculptor's own daughter.

The metal leaves on this tree are engraved with the names of Holocaust victims.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

An ode to a soldier who came to town, fell in love, then began making his own sparkling wine.

A sculpture of the beloved author surrounded by characters from his fairy tales.

The largest fountain in Bratislava.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

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

In the center of Wrocław's old meat market stands a somber tribute to the city's livestock.

The giant statue and its model solar system honor the native Pole who declared that the Earth revolves around the Sun.

The Polish capital has had a deep connection to its guardian mermaid for almost a millennium now.

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

Mounds of fine golden sand that can rise nearly 500 feet tall.

Watch the seas clash at the place where according to Maori tradition, the spirits depart for their journey to the afterlife.