An architectural oddity hides in plain sight on this iconic London bridge.

This elaborate hole in the ground was built as a sacred site for an ancient civilization.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

Bootleggers ran booze beneath this building before (and after) Route 66 appeared beside it.

Legend has it this spring formed at the spot where a medieval Swedish king was killed.

From afar it looks like someone's hat blew into the water, but closer inspection reveals a giant floating sculpture.

The final resting place of a prominent Chippewa chief and several Native American children.

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

Eat burgers beneath gargantuan taxidermy and thousands of dollar bills in Utah's oldest continuously-operating bar.

A large collection of ancient runestones decorates this university courtyard.

A prehistoric landscape hidden in the cliffs of Maha'ulepu.

This industrial area was the dumping ground for massive amounts of trash, some of which washes up as tiny bits of sea glass.

This blowhole is supposedly caused by a trapped monster.

This former luxury resort in Kaua'i is now an abandoned relic.

The famous aviator's final resting place is a study in natural beauty.

A priest with no formal artistic training used basic house paint to create gorgeous religious scenes inside this historic church.

There are two legends behind the origin of this unusually tall sanitary structure.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

The heads of two giant mythological water horses honor Scotland's horselord past.

This vintage gem is one of the oldest surviving purpose-built movie palaces in Scotland.

A curiosity-seeker's paradise set inside a three-story historic school house.

A mechanized clock where a man fights off a dragon, crab, and rooster.