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

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

New York City's smallest piece of private property.

The first piece of public art dedicated to LGBT rights.

This striking art museum holds an amazing series of curiosity cabinets.

Two flush headstones mark the only known graves to be embedded in an airport runway.

The Southern California pop sounds of surf and sand were born right here.

As its grandiose name implies, this wooden dome is unsurpassed in size.

This lone tree and dramatic sandstone outcropping are so beloved by Michiganders they can be found on one of the state’s coins.

A larger-than-life version of the hat beloved by hunters, outdoorsmen, and Holden Caulfield.

Large one-man sculpture park in Michigan.

Largest magic museum in the United States with more than half a million pieces of memorabilia.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

A small museum celebrating the fiberglass giants that are icons of America's highways.

This sprawling bookstore spans four floors and has more than a million books in stock.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

This historic suspension bridge is one of three remaining swinging bridges in Michigan, and one of the few swinging bridges left in North America.

This red-eyed chrome beast pays homage to the popular modern myth of West Virginia's insectoid monster.

Spiral-bound community recipes and antiquarian gems mingle at this small East Village shop.

The dishes at this restaurant by The Sioux Chef celebrate indigenous heritage.

These mansions date back to Chicago's days as a brewer's paradise.

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

A 24-hour vending machine restocked daily with homemade full-sized pecan pies.

A small museum dedicated to the whimsical tool that turns sugar cookies into works of art.