Created as a "model concentration camp" to hide Nazi atrocities from the international community, this former camp-ghetto now holds a museum and memorial honoring the lives lost within.

This building contains handprints that are well over a century old.

This replica of the Greek structure is in the heart of Nashville.

Since it formed millions of years ago, this cave system has been a sacred burial ground, a Prohibition-era speakeasy, and the center of an amusement park.

A 56-foot tall statue of the god of fire looks out over Birmingham, Alabama.

Featuring the largest CinemaScope screen in Pennsylvania, this drive-in has entertained moviegoers for more than half a century.

12,000 sq. ft. museum tracing erotic art from antiquity to modern times.

Hidden behind West Philadelphia rowhomes is a haven for migratory and local bird species both ordinary and rare.

An eerie, decaying ghost town destined to fade into the forest.

A cave on the Maryland border where civilians took refuge during the bloodiest battle of the Civil War.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

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

A massive art collective tries a new take on Brooklyn's DIY music scene—by making it fully legal.

This is probably not the Target you're looking for.

Home to an endangered salamander, a full moon celebration, and a large spring-fed outdoor swimming pool.

Michael Jackson got Bad and Crocodile Dundee walked on heads in this iconic Brooklyn subway station.

One of the only single-person private gravesites in New York City.

New York's unstoppable progress turned this cemetery into the smallest burial ground in the city.

The final resting place of Harriet Tubman and other famous historical figures.

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

A cult following celebrates the legend that belies this curious podiatrists' office sign which has worked its way into song, literature, animation, and the visual arts.

Its unique collection details the history of the state's svelte railroads.

This city park was once a lookout point for George Washington’s army during the Battle of Brooklyn in 1776.

A burial ground of rusting metal grave markers.