Railroad officials in the early 1900s sought to spare travelers the sight of Roman soldiers’ private parts.

An Industrial Revolution-era public work that purified water using nothing but sand.

Dedicated to the man who created the first radio wave communication system.

A Civil War fort in the middle of Washington, D.C. has been swallowed by a forest.

The iconic D.C. restaurant where the Cuban Missile Crisis was negotiated, now a Walgreens.

Texas’s first suspension bridge is still carrying people across the Brazos.

Some of the best pastries in "the Czech heritage capital of Texas" come from a gas station off I-35.

A museum showcasing fossils purportedly proving a 6,000-year-old Earth.

A few times a day, you can see an animatronic cowboy shoot-out.

The souvenir got the company’s founder out of a pretty pickle at the World’s Fair.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

There aren't too many operational funiculars around, but Pittsburgh has two!

Yo, Adrian!

The first American department store, and home to the largest operating musical instrument in the world.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

A bronze statue of Mister Rogers in the neighborhood where he grew up.

A larger-than-life statue of America's favorite sundae marks the place it was invented.

The trials and tribulations of marking Poe’s grave.

The "world’s largest honky-tonk" also has its own indoor rodeo arena.

On a clear day, you can see all the way to the Virgin Islands from the top of this observation tower built in the 1960s.

The only female equestrian statue in Washington, D.C. is a 15th-century French heroine.

The first memorial dedicated solely to the Black troops who fought for the Union.

Washington D.C.'s most famous pianist, composer, and bandleader still tickles the ivories outside Howard Theater.