The floor of this spectacular Baroque sanctuary is covered in memento mori.

A World War II-era sign in Valletta is a reminder of when Malta was besieged so severely that food needed to be rationed.

The remains of a 1st-century aristocratic Roman town house featuring beautiful well-preserved mosaics.

Burial grounds for more than 1,000 bodies deep under the modern town of Rabat.

Valletta’s outdoor theatre stands within the ruins of a 19th-century opera house.

The last Victorian market in Belfast.

The statue honors a beloved bird that once roamed St. George's Market.

A palatial former bank building now houses what may be the poshest art venue (and former Tesco) in Belfast.

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

A towering steel-and-bronze figure whose playful nickname outshines its official message of hope

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

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

Originally commissioned as a sculpture to reflect the history of Belfast's red-light district, the final sculpture has been banned from Belfast public land.

It was once nicknamed "the most bombed hotel in Europe."

Originally meant to hold a statue of King William IV, this support sat empty for years. Today, it hosts a rotating cast of public artwork.

The devil-defying mark left by a saint as a boy is visible inside Lisbon's cathedral.

This Italian stadium makes liberal use of fascist statuary to evoke classical sporting arenas.

The remains of this 2nd-century Roman temple are incorporated into a modern building.

This one-of-a-kind Roman arch is not actually dedicated to the god Janus.

Dedicated to the legendary comedian Eric Morecambe depicting his iconic "Bring Me Sunshine" stance.

A jumble of concrete on the corner of one of London’s terraced buildings is actually a work of art.

Two of the most notable names in automobile history are commemorated at the place where they're said to have first met.

When the city of Manchester built a new centralized heating network, they did it with style.

This building's name and a plaque are all that's left of what was probably the most important nightclub of the Madchester music scene.