The unbelievably opulent home built for an infamous newspaperman.

This historic building housed the surviving crew members of the Titanic, who were left destitute after the wreck.

A notorious punk house turned co-op.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

Try not to get slimed in Tribeca.

The beams of the New College, Oxford dining hall come with an amazing story.

Eclectic architecture in the woods of New York.

The celebrated eyesore created by starry-eyed sweethearts.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

Part bookstore, part café, and part forest.

The only castle in North America to ever house European sovereigns.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

Frida Kahlo's childhood home, now a museum of her life and works.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

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

The gravestone of the suffragist leader attracted extra visitors during the 2016 election.

The remains of a failed subway in upstate New York is now an underground graffiti bunker.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

Constructed in the 1920s, this former pencil factory is now an office building.

A playground inspired by differential calculus dangles from the ceiling of the Liberty Science Center.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.