This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

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

This evocative New Jersey statue memoralizes the Polish victims of a Soviet massacre.

The remains of a 19th century spring, and the site of an infamous unsolved murder.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

Salute the leader of the proletariat.

On the Hudson resides one of the largest clocks in the world.

The boulder on which Alexander Hamilton laid his head as he died can still be visited on the New Jersey coast.

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

World's first "penitentiary," meant to be humane, drove men insane.

This museum glorifies the humble potato.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

According to the Guanches, the aboriginal people of the Canary Islands, the king of evil lives inside this volcano.

In its day this historic fort held 100 cannons pointed in almost every direction to protect New York.

Lie in a hammock where George Washington stood.

There must be a pun in this haystack somewhere...

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

Everyone from Mark Twain to Teddy Roosevelt has a pipe hanging from the walls of this historic chophouse.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

Possibly the world's largest hourglass only needs to be reset every New Year's Eve.

Budapest's Communist-era statues, banished to the suburbs.