The creator of the carousel's bingo-pinball hybrid survives in California's oldest gaming establishment.

A mass grave for victims of one of the city’s worst fires.

The headquarters of the famous Yale society.

137 graves holding New England's earliest residents.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

The Battle of Atlanta in 360 degrees, featuring a corpse that bears a striking resemblance to Clark Gable.

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

Step inside Lucy, the world's largest "elephant."

This ultra-modern home clings to the slope of the Hollywood Hills on a precarious stilt.

Dictionary Johnson’s favorite feline.

One of the oldest trees in Britain may have been witness to some of the country's formative moments.

According to legend it was a nap taken under this tree that kicked off the California Gold Rush.

Breathtaking and huge 430 year old maps of Italy.

The second-largest ceremonial mound in the United States is an artificial hill that is loosely shaped like a pentagon.

An unusual round church in London with a Templar past.

Lake Champlain Bridge, the recently demolished and rebuilt bridge where they filmed "What Lies Beneath".

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

This playground sculpture of an icon from the past is dedicated to the children of the future.

Bird dung painted this huge boulder which in turn inspired the name of a city.

This expansive bridge in the Canadian wilderness was originally just built for friends.

A sacred lake composed of over 300 separate pools of highly concentrated minerals.

The "Crow Boat" of Kootenay Lake, sold for a dollar and now on display as "the world's oldest intact passenger sternwheeler."

This house was largely built out of hundreds of thousands of discarded glass embalming fluid bottles.