A layered tribute to the work of mosaicist Isaiah Zagar.

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

World's first "penitentiary," meant to be humane, drove men insane.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

Enjoy a slice while browsing the world's largest collection of pizza memorabilia.

A man used his Civil War-era fortune to build this sanctuary in memory of his wife.

This stained glass window designed by Tiffany Studios is hidden behind the circulation desk of a public library.

Thousands of bottles that have held everything from poison to perfume make up the collection of this small museum.

The final resting place of President Chester A. Arthur and hundreds of others from Revolutionary War soldiers to poets, politicians, and painters.

The first American home of the isolated, egalitarian religion has a trove of Shaker architecture and artifacts.

America's greatest forgotten garden and the former stomping grounds of Son of Sam.

The home of one of America's most wealthy industrialists is now a historic site that remembers a more decadent time in the country's history.

This once-grand marvel of engineering is now 41 miles of scenic hiking trail.

This dilapidated castle-like structure overlooks the Hudson River at one of its widest points and was once home to nuns.

This tiny church near Sleepy Hollow contains Henri Matisse's last work, a rose window, and nine windows by Marc Chagall.

This fancifully decorated Victorian home in New York’s Hudson Valley is the only known fully domed octagonal residence in the United States.

One of the earliest bowling lanes in the U.S. doubled as a sewing school during a time when women had little job opportunity.

Sip colonial-era cocktails at this monthly recreation of a 1740 watering hole.

The historic home still shows the scars from a little run-in with the British in 1813.

A statue of the English poet for whom this Delaware town is named is ritually dressed in seasonally appropriate clothing.

One of the oldest active carousels in the country—but it might be missed by all but the keenest-eyed boardwalk strollers.

A grotesque Fiji merman dwells within this traditional Dutch-style building.

After being inoperative for over half a century, this elaborate fountain in Atlanta's oldest park was restored to its former glory.

An old bank vault in Atlanta is now the eternal shrine to the King of Rock and Roll.