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

Some of the best Persian food in New York comes from the front window of an unassuming pizza shop.

Come for the waffles, stay for more waffles.

Unusual books about food and drink abound in this 19th-century New York townhouse.

Finally, you don't have to be a pious Swedish seaman to relax like one.

Love, knishes, and best wishes from this legendary Lower East Side bakery.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

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

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

A terrific purveyor of natural history objects and curios.

One of Philadelphia's largest murals resides hidden under this bridge.

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

A layered tribute to the work of mosaicist Isaiah Zagar.

A beautiful oddities shop crammed with strange and morbid curiosities.

The first custom-designed building to showcase the works of Dale Chihuly is a wonderland of glass and light.

Possibly the world's oldest rug, this Egyptian relic is woven entirely from ancient cat hair and once carried a mummified human foot.

Intertwined, interspecies trees which locals believe can grant boons to lovers.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

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

Sculpture garden and miniature golf course blend together in the oversized backyard of a Minnesota sculptor.

Come for the giant taxidermy lion, stay for the knick knacks at this Minneapolis curiosity shop.

A memorial to a larger-than-life legend, inside a county that also holds Bunyan's death certificate.

A winged-helmed, sword-brandishing tribute to German Americans.