Housing the National Women's Party since 1929, this historic house is now a monument to the fight for gender equality.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

A crumbling hospital from the 1850s on Roosevelt Island.

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

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

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

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

This Maryland farm is known for its amazing corn mazes and its 30-foot junkbots.

This English-inspired Maryland garden is home to acres of opulent plant life including bushes shaped into an entire fox hunt.

Bizarre Cavern.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

A semi-scholarly approach to sex.

Hundreds of skulls and bones at the largest skeleton museum in the country.

The 30,000-volume library is one of the world's most impressive poetry collections.

Chicago's museum dedicated to the history of bondage and fetishism is more textbook than titillation.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

The world's only known button museum.

A monument to the art of slicing people open.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

Beautiful steampunk ghosts of early Massachusetts.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

This Boston medical museum features the skull of the famous medical case of Phineas Gage.