A crumbling hospital from the 1850s on Roosevelt Island.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

Rippling sand dunes frozen in the Arizona rock.

World's largest collection of serial killer artwork and other macabre exhibits.

A psychedelic labyrinth on the San Francisco bay.

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

An artsy hidden staircase leads to breathtaking views of San Francisco.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A huge musical instrument played by the ocean.

A terrific purveyor of natural history objects and curios.

Weighing 30,000 pounds, this monument represents Detroit's first industrial era.

Michigan’s most famous shoe tree.

A museum dedicated to the dead and the tools used to usher them into the afterlife.

One of the few working locomotive roundhouses in the United States.

Easily overlooked in favor of the wineries that dot the region, this blast from the past is equally worth the visit.

It leads to a former hospital’s old root cellar.

Winter weather reveals a large Italian marble crucifix drowned beneath Lake Michigan.

Located in a Civil War era building, this café is engrained with the spirit of Edgar Allen Poe.

The park is home to the United States's only still-operating Dutch windmill.

A charming remnant of 19th-century fishing towns sits on Michigan’s Leelanau Peninsula.

Every winter, water dripping from a pole creates an ever-changing ice sculpture.

The 10-foot-tall vegetables belong to Michigan’s first food rescue program.

At HopCat, a marker honors fictional creatures with the ability to travel the missing dimensions of Kcymaerxthaere.