The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

Installed at a chaotic intersection, this gave London traffic cops a place to hang their heavy woolen coats.

Established over a thousand years ago, this family-run teahouse continues to serve skewers of sweet rice cake to this day.

For a buck, students can snag freshly picked apples grown in the university orchards.

In Phetchaburi, Thailand, a roadside vendor cooks his fare with 1,000 mirrors and the power of the sun.

Across the islands, baked goods, sauces, and much more are for sale 24/7.

The greatest real estate coup of all time.

A hip bar decorated with walls of golden skulls.

Cooks at this tiny takeout spot grind their rice flour in a stone mill each morning for perfect cheung fun.

The front yard of an Upper East Side town house hides the last fragment of one of New York's most famous theatres.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

Giant sand sculptures of famous people and places are on display near the Tottori sand dunes.

An enigmatic modern marker left next to a historic Roman site.

The best place in New York to pick up the controversial, notoriously foul-smelling Asian "king of fruits."

A whimsical sensor instrument for Minneapolitans to play on their walks to work.

An architect transformed this abandoned cement factory into his castle-like workshop.

A disconnected rotary phone for "calling" lost loved ones offered a unique way of dealing with grief in disaster-stricken Japan.

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

These expertly crafted, scientifically accurate glass sea creatures were once an international phenomenon.

Neon signs that grace the windows of Bergdorf Goodman's and Tiffany & Co. come from this studio in Brooklyn.

This lake in northwest Iran has started turning from green to red more frequently than scientists are comfortable with.

The hollow trunk of this 650-year-old tree was used as a hideout by two Jewish brothers during World War II.

A plaque commemorates the spot in the Oregon woods where the first-ever Geocache was hidden.

An institution dedicated to curiosity, logic, riddles, and Mongolia's long history of puzzles.