This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

World's first "penitentiary," meant to be humane, drove men insane.

This abandoned psychiatric hospital once housed more than 4,000 patients in the middle of a quaint New England town.

American artist J. Alden Weir purchased this 60-acre estate for $10 and a painting.

Now home to hardy plants, these sand and gravel dunes once held back a massive prehistoric lake.

Hidden behind a Target are pillows of cooled lava that formed at the bottom of a deep lake in the Mesozoic Era.

This historic railway museum may have lost its passengers but not its love for trains.

This petite park lets visitors see and touch examples of fossilized dinosaur tracks.

The cave where two British judges hid in exile after sentencing the king to death.

A castle inspired by medieval architecture is hidden in the woods of Connecticut.

This small-town pizzeria won the Hollywood lottery.

The world's largest public collection of PEZ memorabilia.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

The ancient past meets the retro-future at these dinosaur tracks that are protected by a geodesic dome.

Ruins of a historic medical facility sits eerily by the water.

At this former Prohibition speakeasy, electric birds signaled the arrival of hooch.

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

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

This simple convenience store sits on the location where the Ouija board was named—and has a plaque to prove it.

A blank headstone topped with a pile of pennies marks the final resting place of the infamous assassin.

A hidden alley in urban Baltimore is a haven for graffiti artists.

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

The man who first patented the Ouija board rests in peace beneath a headstone that playfully reflects that achievement.