A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

Inside this wonderland of weird, visitors are treated to a collection ranging from skeletons to haunted artifacts.

Known locally as "the giant head," this 14-foot LED sculpture has a photo booth in the neck where you can have a 3D picture taken and displayed.

A bronze of the man in all his sinewy glory celebrates his longtime connection to the Ohio city.

What started as makeshift fishermen's housing has grown into a massive, floating community.

A pillar is all that remains of a church built to honor a peculiar miracle.

A beautifully eclectic mix of architectural styles.

Cat art as far as the eye can see.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

Debatably clever, or just plain honest hotel advertised as "The Worst Hotel in the World."

This vast collection of smoking pipes from across the world spans centuries.

A set of seven houses, each built in a style that represents a European country.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

A museum dedicated to the history of the diamond trade in the Netherlands.

The national park was once a plantation estate.

A portal into the bricked up canal that runs through the heart of Washington D.C.

The word "Watergate" will forever be associated with the infamous scandal in 1972, but this fountain is famous in its own right.

The "Key of Keys" for Washington, D.C. and the apocryphal landing place for the military campaign that started George Washington's career is now at the bottom of a well.

For 60 years, the academy had no permanent location until members voted Washington D.C. as its forever home.

Engraved in stone here are the signatures of everyone who signed the Declaration of Independence.

On the Fourth of July this area will transform into a Pompeii-like storm of falling embers and ash.

A gift from Japan, 17th-century lantern stands among the cherry trees at D.C.'s Tidal Basin.

This mysterious structure by the Washington Monument is a flood barrier designed to protect the White House against rising waters.