You have to love a museum with a truly dedicated focus. A focus on Superman, for example.

Time travel with sweets across history at this research-based candy store.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Public opinion is still divided on this enormous sculpture in front of Baltimore's Penn Station.

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

Once a thriving business district, this former shopping area is now an urban ghost town in the heart of the city.

Meet some of the most prominent figures in Black history through life-sized wax models.

A layered tribute to the work of mosaicist Isaiah Zagar.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.

Elevated freight railway turned wildly successful urban park.

An abandoned church gets a second life as a massive beer hall and event space.

Part of a WWII submarine is lurking outside the Washington Navy Yard parking lot.

Light bulbs, scrap wood, and tinfoil comprise this homemade throne of the gods.

A heroic pigeon that, through a barrage of gunfire, delivered a message that saved over 100 lives in World War I.

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

The "lovely red Vega" of the legendary record-settling pilot.

The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

An atomic bomb-proof strongbox protects the U.S. Constitution from terrorists and thieves.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

Home to items never before seen by the public.

Baltimore's classic clock tower was once topped by a rotating, 20-ton medicine bottle.