A tiny monument to the unsuccessful attempt by Thomas Jefferson to place the prime meridian in Washington.

Look closely and you’ll notice that the color changes a third of the way up the tower.

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

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

Established in 1925, Kiddie Park claims to be the oldest amusement park in the U.S. - a cozy little time warp nestled in a shady corner of the modern world.

These boots are made for selfies.

An atomic bomb-proof strongbox protects the U.S. Constitution from terrorists and thieves.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

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

One Confederate statue that accurately reflects the ugliness of its subject.

Home of an evil witch famous within southern folklore.

This replica of the Greek structure is in the heart of Nashville.