Piran’s oldest square is laden with history and a beautiful 18th-century reservoir.

This delicious Bosnian barbecue restaurant celebrates the diverse cuisine of Slovenia.

Ancient serpentine sacrifice holder that has stood the test of time.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

A fountain standing as a testament to a doomed alliance.

These unusual rooms on wheels are holdovers from the 1960s.

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

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

While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.

An easily overlooked memorial to a Ukrainian famine-genocide that killed over 4 million people.

A 1,100-ton train fell through the floor in 1953. Workers got it patched up in just 72 hours.

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

When this monument to Slovenia's national poet was erected, it's said to have sparked the ire of nearby church authorities.

A public work of art that also provides some relief from the summer heat.

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

A whimsical bridge adorned with decorative dragons.

Buy raw milk from a 24/7 vending machine or pick up tomb candles at this local market.

Inspired by the Rialto Bridge in Venice, these three clustered bridges were just one part of a Slovenian architect’s grand vision.

The once highest point in China blends symbolic design with a kick of adrenaline.

This psychedelic tourist trap is a leisurely descent into madness.

A street in front of NASA's D.C. headquarters has been named in honor of the Black women who were essential to early spaceflight.

An echo chamber with a waterfall wrapped around its base at the Embassy of Canada in Washington, D.C.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.