This donated headstone marks the grave of a pair of elderly women who were mysteriously murdered.

Legend has it the mill owner's daughter, Mary Musgrove, helped a Patriot soldier hide behind these falls.

One-of-a-kind museum inside the first Boeing 747-400 ever made.

What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."

The final resting place of a woman who never gave up on love.

A relic of FDR's brief foray into utopian urban planning.

Famous and forgotten figures lie beneath the faded headstones and decaying planks of wood.

A unique workspace where offices reside on pirate ships and inside gingerbread houses.

A classic mystery spot complete with spots that are said to make you shrink or grow when you stand on them.

Site of the 1879 Cheyenne Outbreak and the site where famed Sioux chief Crazy Horse met his fate.

This schoolhouse for Black American children is one of the oldest remaining in southeastern Ohio.

An abandoned 19th-century hospital now swirling in ghost stories.

A quiet marker in memory of local men and women lost in WWI.

This tiny Hawaiian island is slowly coming back to life after being bombed during naval training exercises.

Now the final resting place of prominent artists and musicians, it was originally founded to separate the rich from the poor in death.

Touch an actual dinosaur bone at this eclectic trove of Rocky Mountain treasures.

This Upper East Side apartment co-op was designed as a tuberculosis sanitarium.

A legendary boxing venue and ring featured in Rocky V.

The oldest Naval cemetery on the West Coast.

The humble fort that saved Washington.

Teddy Roosevelt’s famous “midnight ride to the presidency" started at this small lake high up in the Adirondacks.

The world's 2nd or 3rd or 4th busiest seaplane base.

This spot memorializes one of the greatest plays in NFL history, unless you happen to be a Raiders fan.

This hidden stone has absorbed decades of human anxiety.