This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

This theatre was made famous after Lee Harvey Oswald was captured inside watching a film.

A unique sculpture park that specializes in the huge and bizarre.

Yo, Adrian!

The origin of this mechanical boy was a mystery until he revealed his maker by writing it in perfect cursive.

A daily replay of the experiment that proved the rotation of the Earth.

This historic iron-working village is now a ghost town so immaculate that it looks as though it was recently built.

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

A taste of Middle Earth, in the middle of the Bayou City.

One man's homage to the orange as realized through a long-term folk art labor of love.

An ancient Viking runestone hidden in plain view in Stockholm's old town.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The only castle in North America to ever house European sovereigns.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

Beautiful Austrian natural history museum with carved ceilings and row after row of ancient taxidermy.

The topiary maze at the Habsburg hunting lodge.

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

An abandoned quicksilver mining town surrounded by the Big Bend parks.

The world's tallest statue of an American hero.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

Human ancestor’s 3.6 million year-old footprints.