A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

Egyptian Revival movie palace abandoned for decades and restored in 2013.

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.

A museum of carnival attractions where you are invited to ride the rides.

This massive library holds what was once the largest book collection in the world.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Lavish royal estate punctuated with heated greenhouses.

This historic factory peddles classic toys from the picturesque English county of Devon.

A collection of comics, graphic novels, animation and caricatures devoted to exploring this often overlooked art form.

A unique waterfall that some believe attracts the fairfolk.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

Spend the night in this formerly abandoned traditional Scottish village.

Northern Ireland's Brobdingnagian stepping stones.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

A vast overgrown cemetery, once known as one of London's "Magnificent Seven."

Rebuilt remains of a temple to Roman god Mithras.

An unusual round church in London with a Templar past.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

One part local history, 99 parts gruesome haunted house.