A celebrity from the late Cretaceous period.

The most accurate timepiece in the world.

There’s a special club house at the top for the bell ringers.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

Public opinion is still divided on this enormous sculpture in front of Baltimore's Penn Station.

Fears of Satanic worshippers swirl around five Celtic-inspired megaliths.

What was once a summer home next to a waterfall has now become littered with graffiti and children in swimsuits.

Once the smallest park in the national system.

An ancient Greek monument and a Byzantine church coexist inside this cave.

Home to drunken tower-climbing goats... seriously.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

A decidedly out of place statue memorializes the Blues Brothers characters at this water bottling plant.

Before Metro, Washington had a robust streetcar network—and you see the remains of this infrastructure if you know where to look.

The site of the climactic scene from the classic horror film is now a historic landmark.

An overlooked oasis of quiet on the grounds of Washington's monumental basilica.

This memorial honors five journalists who were killed in a mass shooting in 2018, and affirms the importance of the first amendment.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

Baltimore's classic clock tower was once topped by a rotating, 20-ton medicine bottle.

A winding district gerrymandered into the shape of a mantis.

An oft-overlooked, magically musical monolith that stands majestically between Arlington Cemetery and the Iwo Jima Memorial.

This working class sculpture pounds his hammer all the livelong day.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

A community gathering place that once housed half-ton tanks and the World's Fair.