A remote hill on a stretch of country road where the laws of physics are defied... or so it seems.

Wisconsin's most celebrated export gets the royal treatment on I-94.

This striking art museum holds an amazing series of curiosity cabinets.

From burial ground bocce ball court.

This old residential building was once the largest flour mill in the world.

Come for the giant taxidermy lion, stay for the knick knacks at this Minneapolis curiosity shop.

The oldest continually used church in Minneapolis also sells great meat pies.

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.

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

Daredevil repair workers can worm their way out the access hatch, loop ropes over the apex and rappel down the monument.

100 years later, they're still down there.

There's an old indoor swimming pool hidden directly underneath the White House Press Briefing Room.

The monument's pointy aluminum tip has been melted down by repeated lightning strikes.

The first presidential bomb shelter was located in an old vault under the Treasury, connected to the White House via tunnel.

The "lovely red Vega" of the legendary record-settling pilot.

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

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

The walls of the iconic dome are hollow and have a secret stairway.

There’s a hidden military meme engraved on the World War II Memorial.

Sniff the Titan Arum's rotting flesh.

A Victorian cemetery in the heart of Brooklyn remains a popular mecca of morbid curiosity.

A way to take your secrets to someone else's grave.

A tree that grows parallel to the ground was declared Brooklyn's "crowning curio" by the poet who saved it.

This city park was once a lookout point for George Washington’s army during the Battle of Brooklyn in 1776.