A speakeasy takes on Chicago's drinking culture.

Less a museum than a bizarre fantasy world created by artists and engineers.

A museum dedicated to exhibiting remarkable outsider art.

The trials and tribulations of marking Poe's grave.

The miraculous hydrant that saved the Mission District in 1906.

San Francisco's newly reopened hands-on science museum.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

This abandoned caretaker's apartment is one of 13 left in the New York Public Library system.

One kilometer of thick brass rod laid out before your eyes.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

Cryptic messages embedded in the New York City sidewalk.

Mysterious 500-year-old tapestries depict a unicorn hunt.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Elevated freight railway turned wildly successful urban park.

France's most famous cemetery, with some of its most curious tombs.

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

A new sculpture calls attention to climate change in the centuries-old city it threatens.

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

This community on a small Venetian island has taken to painting their houses in bright neon hues.

See the sky in a new way through this art installation.

An incredible menagerie of more than 3 million taxidermied animals at the oldest science museum in Europe.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

The largest and most famous wax anatomical collection anywhere in the world.