This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

One of the best collections of wax anatomical models in the world.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

A random tree outside a Budapest hotel has become a DIY shrine to the late singer.

According to tradition this is the oldest church in Venice, but its actual age is a mystery.

An iron dragon with a long neck covered in feathery scales perched above one of Venice's most popular squares.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

Armenian monks at an island monastery in the Venetian Lagoon make a rare rose petal jam.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

Disney's abandoned animal island is now an overgrown ruin that was almost the coolest attraction ever.

Disney World's very first waterpark is now an abandoned ruin being reclaimed by the swamp.

This shrine commemorates the site of the first known Catholic mass in the United States.

It's a pretty creepy lock-up.

Location of a reliquary containing bone fragments of 18 saints.

The only ancient owl carving found east of the Mississippi.

What started as three small gnomes at the base of a tree has grown into a full-blown gnome home.

Faded remnants of the entrance to a Mediterranean-style resort that never fully came to life.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

One of two giant blue cockerel statues erected with an intentional double meaning.