New York City's smallest piece of private property.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

This natural rock formation spouts jets of water into the air.

Send a postcard while vacationing with Satan.

The capital of the Cayman Islands is a center of offshore banking, but gets battered by blistering hurricanes.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Three columns of volcanic rock shoot out of the ocean.

Icelandic folklore says this giant boulder was ripped from the mountains and placed at its current location, where it became home to elves.

Along this wire fence, travelers have been leaving a particular memento since 2012.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

A replica of the decorated wooden pillars Viking sailors threw overboard when finding new places to establish a settlement.

The largest whale museum in Europe allows visitors to walk among life-size giants.

Climb right into the heart of this colorful Iceland volcano.

A relatively obscure antihero from the Marvel Comics universe adorns a wall inside Iceland's main airport.

Pillars made of 700 pieces of luggage climb to the ceiling of Sacramento Airport's baggage claim.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Towering basalt columns, a creation of fire and ice.

This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

A charming desert roadside bakery that produces 10 times more bread daily than it has residents in its town.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

The tragedy of the Japanese internment camps is remembered here by a stark "Soul Consoling Tower."

A charming easy-to-miss sculpture garden filled with whimsical and thought-provoking metal sculptures.

Smooth basaltic rocks tell a tale of ancient glacial waterfalls.