Located in the thermoelectric factory that once powered the entire city, this Portuguese museum is shockingly fascinating.

A masterpiece of Rationalist architecture in the center of Madrid with lizards on it.

A professional special effects makeup artist’s collection of horror creatures and one-of-a-kind recreations on display in downtown Boulder City.

The author of Frankenstein is buried here, along with her parents and the heart of her husband, the poet Percy Bysshe Shelley.

Sip cherry liqueur at a bar dating back to 1840.

Eat the ultimate iteration of Portugal's most beloved pastry.

Feast on buckets of garlicky snails.

Step back in time at this 19th-century kiosk.

Get in line for Lisbon’s most famous sandwich.

A non-stop elevator ride in Vienna's city hall.

Sample sweets at an Art Nouveau candy shop that's been in business since 1874.

An enormous factory from the late 1800s sits abandoned on Cleveland eastside.

Like your grandma's attic—if your grandma were a little weirder, extremely well-traveled, and had a great eye for art.

Rumored to be a giant robot in disguise, this colossal chef has been the beloved symbol of Tokyo’s kitchenware district for decades.

This ferry carries passengers across the Rhine propelled by no engine or paddles but by the river's current.

A free ferry service has run between these two English villages since 1885.

This impressive chasm is one of the longest natural underground cavities in the world.

The longest staircase lock in Britain.

One of the oldest continuously operating amusement parks in the U.S. is an open-air museum of Art Deco and neon lights.

A gorgeous, nostalgic café housed in a lofty old warehouse, lit only by petroleum lamps.

The world's largest otter started his life as a high school shop project.

This 1950s-era nostalgic roadside New Mexico attraction consists of a quirky curio store and museum embedded into the face of a cave.

Automatons that were once removed after one fell from the building.

This wildlife refuge is home to more than 200 species of birds, as well as monkeys, lizards, and other wildlife.