This engineering marvel is the longest bridge in Canada and one of the longest spans in the world.

Rusty red sands line the shores of this Canadian Province.

This wooded grove of beautiful hand-built stone grottos is a hidden gem within a shuttered Franciscan monastery.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

More than 5,000 contemporary and "historic" mustards from around the world.

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

The hidden lair of an alchemist rediscovered in a 2002 flood.

Macabre astrological automaton clock dating to the late 1400s.

The first museum in the world devoted to sexual gadgetry.

Caves famous for the dragon-slaying saint who lived there.

The Empire Mine is "one of the oldest, largest, deepest, longest and richest gold mines in California."

A dentist's hated concrete colossi are now beloved icons of the community.

This 19th century hydroelectric powerhouse was the first of its kind.

Copenhagen's celebrated theme park and gardens.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

An Austrian house of bones filled with hundreds of intricately painted skulls.

This micro-nation may be some sort of prank, but its constitution sure seems official.

The Frank Zappa fan club erected this monument to their prog-rock hero to mark a new era of post-Soviet Lithuania.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

The first declared National Monument in the United States.

This haunting tombstone comes complete with a heartbreaking story of love and loss.

A fitting attraction for the corn capital of the world.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.