A mapping error in the 19th century made loggers think this section of the forest was underwater.

This picturesque cliffside beacon no longer calls to sailors but shines once a year in honor of a famous shipwreck.

When flour explodes, it's not a pretty sight.

At this Minnesota state park you can easily wade across the source of the mighty Mississippi.

This secret gem of a toy store houses a rideable carousel populated with fantasy animals.

The Midwest's reigning king of surplus stores is full of nothing you need and everything you want.

This massive roadside mascot was the first version of the giant to illustrate his butt.

These curious caverns have been home to mushrooms, gangsters, and disco.

Half of a waterfall goes into the river while the other half seems to disappear.

Home to the Amorphophallus titanum "Corpse Flower," which is among the largest flowers in the world and also smells powerfully of rotting flesh when in bloom.

High on a hill overlooking Los Angeles lives a world famous, high-power conical Tesla Coil.

The final resting place of two (or three) presidents, one vampire, and 18,000 Confederate soldiers.

This peaceful Massachusetts graveyard was one of the first "garden-style" cemeteries in America.

The final resting place of New Orleans' most famous voodoo priestess.

France's most famous cemetery, with some of its most curious tombs.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

A unique geological area spiked with wind-carved rocks that resemble teepees.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

A sulfuric hellscape in southern Italy.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

As can be expected from a centuries-old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

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