Perhaps the most scandalous statue of America's first president.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

This titanic oil company sign is a reminder of the Americana boom of the 1970s and also its commoditization.

The Magic House provides a beautiful and creative environment for curious youngsters to get their knowledge on.

Less a museum than a bizarre fantasy world created by artists and engineers.

A historic house in St. Louis was plagued by a series of suicides committed by family members involved in a successful brewery.

This is not your typical jungle gym.

What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

The bank that helped fund the Mexican-American War and the purchase of Alaska met its downfall after helping Augusto Pinochet launder money.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

The tunnel under the Capitol Building where Congress takes out its trash.

The only tennis court that falls under the jurisdiction of the central bank.

A muscular Art Deco monument represents the struggle between regulators and unbridled markets.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

A hidden passageway now marks the site of an assassination attempt on Ronald Reagan that some say broke a 140-year-old curse.

An overlooked memorial honoring the local Washington residents who died in World War I.

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

A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.

Behind an abandoned storefront is an example of pioneering 1930s gas station architecture.

This seemingly out-of-place gas station by the Watergate hotel was once described as the most expensive gas station in the world.