The final resting place of the Hollywood star who came to a tragic end.

A man used his Civil War-era fortune to build this sanctuary in memory of his wife.

The largest collection of Frazetta originals in the world.

An ideal wedding spot that is almost too ideal.

This massive solar generating facility in the Nevada desert has been plagued by difficulties.

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

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

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

The eccentric mansion of one the most popular horror authors of modern times.

This Canadian monument to the man who invented the telephone allows visitors to get up close and personal with the artifacts of his life.

This remote piece of Cape Breton coast was the unceremonious landing site of the first solo, east-west transatlantic flight made by a female aviator.

A leafy, peaceful oasis nestled in the heart of Glasgow's busy south side.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

A Manhattan courthouse hides a small but scathing memorial to Holocaust injustice.

Remnants of cells from the most notorious London prison may lie in the basement of a rare Victorian Gin Palace.

It may take some time to locate, but it's sure to warm even a heart of stone.

A partially hidden wall graffitied by spectators of the 1976 Bicentennial, recently rediscovered.

Hidden for 165 years inside a building designed by Thomas Jefferson are the remains of what may be America's first educational chemistry lab.

This cave was hidden for thousands of years, storing the worldly goods of ancient Native Americans.

Hidden in the woods behind this English estate lies a Victorian pet cemetery.

The largest known open fault in the United States is basically a giant natural refrigerator.

Hike deep into the woods to explore this Gilded Age masterpiece.

Not even a series of devastating fires could keep this odd castle in upstate New York from bouncing back.

The first outlet of Canada's biggest fast-food franchise has been slinging doughnuts since 1964.