Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

Macabre astrological automaton clock dating to the late 1400s.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

This strangely amalgamated museum explores the history of the Timex clock company as well as archaeology.

The US Navy's only submarine museum is also home to the world's first nuclear submarine.

This small-town pizzeria won the Hollywood lottery.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

With some 500,000 books across five buildings, this bookstore is a reader's paradise.

This abandoned psychiatric hospital once housed more than 4,000 patients in the middle of a quaint New England town.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

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

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

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

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

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

A small triangle of DC grass is the final resting place of one of Sonny and Cher's songs.

Decades before the scandal, this staircase on the river was a literal "water gate."

This sandwich shop has a century-old elevator behind a sheet of plexiglass.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

This grand gothic brewery has been pumping out suds for over a hundred years.

Home to items never before seen by the public.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.