This mighty white oak in Bethesda survived both the American Revolution and the construction of Washington D.C.'s metro red line.

This propitious plastic porcine has been petitioning park visitors to pick up after themselves for more than 50 years.

The beloved dining spot stands at the cross-section of Hollywood and the Old West.

The show's fictional Korean medical camp was created in the Santa Monica hills.

A military vehicle collection, showcasing how war transportation advanced from horse drawn artillery to self propelled cannons.

The ghostly remains of an accidental sea.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

This California estate was either haunted by ghosts or the Marx brothers.

Arcadia is home to a haven for nature geeks and 80s TV lovers alike.

The world's first disc golf course has the Jet Propulsion Laboratory as a neighbor.

Fourteen curious and controversial white bunnies sit in a circle near Newport Beach City Hall.

The site of murders and Satanic cult gatherings.

This rare tortoise skeleton has been hanging around the downtown Los Angeles museum for over a century.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

D.C.'s first central library was born out of a chance encounter with the philanthropist whose name it bears.

A Civil War Museum with some notable medical antiques.

Unannounced visitors are now welcome at the site of the largest Prohibition-era bootlegging operation in the region.

This poor little statue is the most vandalized memorial in Washington.

Also known as the Founding Church of Scientology.

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

This historic boathouse was constructed using salvaged lumber from burned barns.

Four bald cypress trees in Lafayette Square, across from the White House, mark the southern edge of a 100,000 year old cypress swamp.

These recently uncovered walls are all that's left of Washington, D.C's first defense contractor.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.