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.

Two stone columns flank the grand Venice square, but there were supposed to be three.

The walls and streets of the ancient city are peppered with penises.

Erotic art covers the walls of the largest ancient pleasure palace.

Ancient snack bar of the Roman Empire re-opened.

Pompeii's less famous neighbor is still revealing her secrets.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

These engineering masterpieces are a dominant feature of the Belfast skyline.

This massive monument has been telling the time for 150 years—at a slight angle.

A giant sculpture of the legendary "Salmon of Knowledge" celebrates the return of fish to Belfast's River Lagan.

A boulder in the Churchyard of Down Cathedral marks the legendary burial place of "The Apostle of Ireland."

The only monument to name all of the passengers and crew who died on the RMS Titanic.

The last Victorian market in Belfast.

The "Black Arch" guards the entrance to the picturesque Glens of Antrim.

For part of the year, this innovative greenhouse is painted white to keep the plants from getting scorched.

This cemetery overlooking the Benbulben rock formation is the final resting place of one of Ireland's most beloved poets.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

These murals stand as reminders to the troubled history of this Northern Ireland city.

A museum dedicated to the tragedy of Bloody Sunday.

A stunning Victorian abbey and walled garden on a lakefront.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

A spectacular hidden beach in Ireland has the dark, disturbing nickname of "Murder Hole Beach."

The compass on its front was a handy tool for 17th-century merchants who needed to know the direction of the wind.

Potato-peeling mannequins, Inca art, and a dangling tuber mobile help trace the history of fries at this Belgian museum.