One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

A seaside town with no sea in sight.

This beautiful deer park was built so King Charles I and his court could go hunting while escaping a deadly plague outbreak.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Ice cream stand, snack bar, and time capsule of milk conveyance.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Two thousand artifacts from around the world collected by one woman who loved to travel.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

The attic of a four-century-old canal house hides a clandestine church.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

Look closely and you’ll notice that the color changes a third of the way up the tower.

A working model of the entire San Francisco Bay and much of the Sacramento River Delta, complete with regular tides that change every 14 minutes.

This striking observation tower shaped like a spinnaker sail is the newest icon in historic Portsmouth.

One of the largest mechanical models of the solar system in the world.

The world's largest grapevine has produced a delicious harvest at Hampton Court Palace for almost 250 years.

The handiwork of a underdog clockmaker who solved an impossible problem for an Empire, and forever revolutionized seafaring.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

This fantastical and eclectic English garden takes its inspiration from Egypt, China, the occult and more.

This logic-defying 16th-century Tudor manor still stands to the delight and astonishment of onlookers.

The oldest inn in England served brew to the crusaders.

Fascinating town where normal life interfaces with the occult.