At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

The alley connecting two of country music’s most historic venues has a rich history of its own.

This award-winning men's bathroom was just too beautiful to not allow women to see.

Fuel your honky-tonking with this venue's unbeatable “Recession Special.”

This church houses the “incorrupt” body of its founding Bishop.

Wedged between two sets of row houses is an awkwardly located family graveyard.

A faded sign from the 1920s remembers Baltimore's resistance toward banning alcohol.

The rock on which Moll Dyer was found frozen to death is said to still bear her handprint.

A ghostly cabin attempts to reverse the erasure of enslaved people through poetry.

This scenic Maryland park was the site of one of the worst prison camps of the Civil War.

Washington's top-secret Cold War-era doomsday communications tower is located in a small neighborhood park.

The only Civil War battle in Washington D.C. took place near this highest natural point in the city.

A historic cemetery filled with quirky faux wood art and unique tombstones.

Once damaged by Hurricane Agnes, this bridge is now on the National Register of Historic Places.

Built by the patriotic residents of Boonsboro in a single day.

This is the cabin from which John Brown and his men launched their fateful war to end slavery on October 16, 1859.

An antiquated German apothecary on Chicago's North Side.

This small cemetery remains hidden behind a recreation center.

Tiny observatory made big contributions to the study of the Earth's motion.

A suburban museum tells the story of a historic transportation network and even provides rides in antique trolley cars.

A massive white oak tree provides a beautiful canopy near a suburban shopping center and stood before the signing of the Constitution.

This ruined quarry once produced the distinctive red sandstone used for construction projects in Washington, D.C.

The oldest surviving one-room schoolhouse in Montgomery County, Maryland.

Using a massive antenna made up of five miles of wire, two scientists tuned into organic radio waves from the planet Jupiter.