The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

A historic home with ties to the abolition and suffrage movements.

A near tragic event on this bridge helped inspire the classic film "It's a Wonderful Life."

What remains of the simple red brick chapel where the women's rights movement began.

This statue commemorates the meeting of the most influential minds of the women’s rights movement.

The home, museum, and death site of Kodak's influential founder.

Just below the surface, shrimp are producing temperatures hotter than the sun.

The house that birthed The Old Man and The Sea is now a museum devoted to the old man who wrote it.

This imposing memorial contains the remains of Che Guevara — and 29 other guerrillas who died with him in Bolivia.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

What appears to be an ancient Roman temple is actually a Catholic church.

Fountain where visitors can earn a license to be mad.

The venerated body of a 12th century saint is celebrated each year with the 'Race of the Candles.'

This building features dozens of faces along its facade, although one is a bit chilling.

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.

Two stone columns flank the grand Venice square, but there were supposed to be three.

An extensive collection of reliquaries containing the bones of saints housed in the largest Catholic church in Venice.

Go inside to really appreciate this 500-year-old technological masterpiece.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

In the past, Renaissance sex workers were encouraged to entice customers on this bridge.

Where Venice's gondolas go for a tune-up.

The only museum with its curator—and her pets—buried inside.