In rural Iowa, an imported 19th-century windmill overlooks an unlikely enclave of Danish culture.

Piled high inside this warehouse and coffee shop are salvaged goods that span every corner of the globe.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Yo, Adrian!

This elaborate towering structure was once famed for its revolutionary height.

The last of Philadelphia's wood-paved streets is now a landmark of terrible engineering.

The corporeal remains of Napoleon III's dentist rest under this 15-story obelisk.

These medicine cabinet staples are part of the museum's collection of everyday objects.

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

An enormous, inside-out glass globe built in 1935.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

Two thousand artifacts from around the world collected by one woman who loved to travel.

The headquarters of the prestigious World Food Prize celebrates the heroes in the fight against hunger, has no cafeteria.

A preserved stretch of ancient fossilized trees with an impressive gem collection to boot.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

Lie in a hammock where George Washington stood.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

The "Seinfeld" diner.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

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.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.