This frog-themed restaurant was frequented by Picasso, Saint-Exupéry, and more.

A museum dedicated to one of Paris’s most famous residents, tucked into a corner of one of the city’s most famous squares.

The National Railway Museum in York is the largest railway museum in the world, attracting almost 1 million visitors per year.

Semaphore saints, a golden dragon's head, and a stone carved with religious warnings all call this cathedral home.

This memorial to World War II's fallen airmen shows us the movements of the stars that once guided them.

This sculpture marks the spot where one of the greatest Roman rulers was proclaimed emperor.

A century-old tradition has culminated in a small but singular collection of feline effigies.

A Reformation-era fiery figurehead once denoted this location as a print shop.

This network of narrow, medieval passages has the most delightful name.

This popular square's history as the former site of a church is right beneath your feet.

Makers and sellers of the original and finest York Ghosts.

Follow the original medieval paths that wind through this intriguing section of the city.

One of the shortest streets in York has an especially odd name.

On a site with a long military history, a 1980s shelter.

This 6th-century church honors St. Tudno, the patron saint of Llandudno.

One of the few surviving street funiculars in the world.

Most of Britain's gold reserve was secretly stashed here after the start of World War II.

The grand complex of buildings that comprise Liverpool's Exchange Flags includes a vast World War II bunker that has been frozen in time.

A memorial to the politician who became Great Britain's first fatality to be caused by a locomotive.

The celebrated eyesore created by starry-eyed sweethearts.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

A 168-foot tower, part of the abandoned Chester Leadworks facility.