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

If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.

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

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

Half-drowned wooden stumps and stone blocks are all that remain of a Victorian landing that was destroyed by storms.

The rotting skeleton of a shoreside fun fair that was destroyed by fire and storms still haunts the Brighton ocean view.

The castle still holds traces of the abandoned Roman fort it was built atop.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

The world's oldest continuously operating record shop has been in Cardiff since 1894.

Walk along the medieval fortifications that have been protecting Tallinn since the 14th century.

One of the oldest structures in Helsinki is this burrow grave that dates back to the Bronze Age.

A unique sculpture calls the outside of this steakhouse home.

If you visit Santa's village, you can get your passport stamped to show you crossed into the Arctic Circle.

This Finnish town on the Arctic Circle is trademarked as the Official Hometown of Santa Claus.

This island castle now hosts a world-famous opera festival.

A replica of the home of a famous fictional troll family.

A cathedral resurrected from the ashes of one of Europe's greatest urban fires.

This misspelled graffiti reappears every time it is removed.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

A temporary art piece to celebrate LGBTQ Pride is now a permanent part of Stockholm's traffic landscape.

Stockholm's narrowest alley is barely over two feet wide.

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.

Finnish lake, and scene of an infamous murder mystery.

Visit Finnish architect Matti Suuronen's first UFO-shaped home.