One of the oldest anatomical theaters in the U.S. still in use was once the site of an infamous cadaver riot.

The whole world in one water tank.

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

The design of this historic domed church was influenced by Thomas Jefferson and intended as a statement of religious freedom.

A pre-Industrial Age iron furnace and the site of a nearly-forgotten piece of Black history.

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

A Civil War Museum with some notable medical antiques.

A remote horde of architectural treasures fit for Indiana Jones.

Once part of a dam servicing an early 19th century grist mill, the tucked-way falls are a tricky-to-find urban oasis.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

After hundreds of years of settlement, this once-bustling fishing village sunk into the Chesapeake Bay.

An FDR-era tuberculosis sanatorium has stood abandoned in the suburbs of the U.S. capital for over 30 years.

An eerie, abandoned military base engulfed by nature and graffiti is now home to a local park.

The ruins of this long-abandoned unsuccessful gold mine can still be found.

Walk a trail through a historic Quaker town that outlawed slavery in 1777 and was a major waypoint on the Underground Railroad.

An intricately designed junk art house with four extravagant junk art cars hidden in the suburbs.

A priceless collection of the Nation's cryptologic history.

The land is home to swimming ponies and a legendary 18th-century treasure.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

Founded in 1788, this Rhode Island institution is the oldest operating general store in America.

The site of the largest mass execution in Rhode Island history, haunted by the ghosts of hanged pirates.

This fairy tale-themed amusement park is now abandoned, and childhood metaphors abound.

A safe space and resource for anything and everything relating to sex and sexuality.

The place where Samuel "Slater the Traitor" brought the Industrial Revolution to America.