The final resting place for a wealthy Roman family, this tomb might be the best preserved of its kind outside Italy.

This small condiment museum makes all manner of mustards with a 200-year-old mill.

Inside this McDonald's you can dine on your Big Mac and fries next to a 2,500-year-old Roman wall.

This museum offers a journey back to the Belle Epoque era of Romania.

Check out engineering marvels of the past at this unintentionally retrofuturist museum.

This solitary monastery may hold the remains of Vlad the Impaler (but probably not).

Oddly touching memorial to a little-remembered nuclear tragedy.

Inside the columbarium, thousands of colorful, high-tech Buddhas guard the ashes of the dead.

Bizarrely shaped rock formations in northwest Bulgaria come with equally bizarre legends.

Backwards hour and minute hands and a timing mechanism that fluctuates with the temperature led to this clock tower's local nickname.

A little theme park full of miniature monasteries and churches, made by hand.

This fresco inside a Serbian cave church has been a source of disagreement.

Tucked in an urban forest, this restaurant specializes in homemade, healing rakijas.

One of the last umbrella repair shops in Paris upholds the nostalgic art of umbrella making.

A glamorous hotel that once accommodated French resistance fighters and concentration camp survivors.

Two awe-inspiring globes from the reign of the Sun King hang from the ceiling of France's national library.

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

A modern-day Lascaux cave underneath Paris.

The subterranean "lake" below the Paris opera house inspired the Phantom of the Opera's lair.

For one day every month Barcelona's Estació de França transforms into a market for model trains.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

Barcelona's historic 19th-century sewers, whose foundations were laid in medieval times, are open to the public for exploring.

An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

Antiques shop filled with all manner of curious collectibles.