According to the legend, this strikingly beautiful hill has miraculous healing powers.

The first American department store, and home to the largest operating musical instrument in the world.

A museum dedicated to the strange and extravagant costumes and memorabilia of the mummers, a tradition older than Philadelphia itself.

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

Dr Barnes' $25 billion private collection of art and arboretum.

The oldest surviving botanic garden in the United States.

A rare view of a preserved Victorian science museum.

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

This rooftop sign has been confusing Milwaukee-bound airline passengers for decades.

Three playfully immersive mini golf courses let you travel alongside your ball to the cup at this facility, which has been around since the 1950s.

This holy goods emporium is where priests go for a little retail therapy to outfit their churches.

This circus town museum recognizes the outstanding clowns of history.

A wonderfully curated used bookstore in an airport.

A trailblazing sovereign nation tucked in the American state of Wisconsin.

The bugs crawling down the front of this office building are almost as big as a '68 VW Beetle.

More than 5,000 contemporary and "historic" mustards from around the world.

Once a speakeasy operated by Al Capone, this Milwaukee cigar bar is now a haven for ghost hunters.

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.

Restaurant in Northern Wisconsin comes with a unique feature: a grassy roof covered in living goats.

Vikings and Evangelicals have both had a hand in this replica medieval church.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

A unique sculpture park that specializes in the huge and bizarre.

This hidden oasis features a stunning view of the Hudson River and the Palisades from a castle-like museum.

This Queens beer hall preserves a German culture and language that is all but lost.