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

This historic funicular system combines the old with the new while offering delightful views over the surrounding valley.

Cozy basement bar sports an inventory of over 2,000 beers.

This ancient ruined monastery has been destroyed by fire so many times that it seems like God hates it.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

The Guardian of Tallinn.

Latvia's symbolic mountain-shaped national library is home to millions of cultural tomes.

The last bastion of Roman presence north of the Alps looms over a German town.

The Slovenian architect designed many landmarks in the capital city, including his own dream house.

The walls of this medieval church are covered with perfectly preserved frescos, including a pristine example of the Dance of Death.

France's national museum of scientific and industrial instruments.

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

No one knows who painted this mysterious mural in a Penn State basement.

America's only city hall with minarets took architectural cues from Ali Baba and the Forty Thieves.

Former villa and estate of James Deering developed to preserve native tropical forests.

Where monkeys run wild and the humans are caged.

A community of collapsing homes more than a mile out from the Florida coast.

An old spiral fire escape dangles above a public courtyard in Midtown Oklahoma City.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

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

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

A French artist's vague warning hangs over Belleville.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

Exquisite wall sculptures carved in secret by an early quarryman in an obscure corner of the Paris Catacombs.