A fascinating and enormous collection of natural history exhibits stained by a dark colonial legacy.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

Paris' fabled purveyor of exotic taxidermy and natural history curios.

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

This haunting location was featured in the final scene of a classic spaghetti western.

The scorched Lisbon church that survived two earthquakes and a massive fire.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

This once-forgotten oasis in the middle of Lisbon was first created over a century ago quite by accident.

Perhaps the most spectacular grotto along the Algarve coastline.

This unassuming chapel in Portugal plays host to a ghoulish collection of bones.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

This small chapel is built of human bones and decorated with a golden skeleton.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

This little-known national museum houses over 40,000 works of art from across the world.

A collection of weird and wonderful art fills a former houseplant nursery.

Somewhere there is a giant who can no longer poop, but now travelers can stay inside his anus.

Climb inside an iron crystal magnified 165 billion times its normal size.

A little sculpture with a large wardrobe.

This Belgian observatory bears a striking resemblance to Futurama's Planet Express building.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

Dublin's "Dead Zoo" serves as a window to Victorian museum design.

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

An English explorer's vast natural history collection has the first realistic dioramas of animals staged in their natural habitats.

This 20-foot mountain is made up of some 15,000 mannequins—if you visit, you can even take a piece home with you.