Hidden inside this Arizona fast food franchise is an in-depth exhibit on the famed WWII counterintelligence program.

Love, knishes, and best wishes from this legendary Lower East Side bakery.

This abandoned factory on the Hudson River once churned out a million bricks a week.

This abstract sculpture is rumored to cast a hammer-and-sickle shadow once a year.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

A 19th-century Baja cantina that many say is the birthplace of the margarita.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

This monument to a veteran of the Mexican-American War is one of only two in Manhattan that serve as an actual mausoleum.

Manhattan's Thirteenth Avenue was made on landfill then deliberately destroyed — apart from one small, obscure block.

A 19th-century politician who died after walking home in a blizzard is honored with this Manhattan statue.

One of the few remaining American elm trees in New York’s Tompkins Square Park was the birthplace of a new religion.

The last of its kind in the country.

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

In its day this historic fort held 100 cannons pointed in almost every direction to protect New York.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

Home to three historic ships from the age of Vikings.

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

Housing the famous Norwegian ice-defying 19th century polar exploration ship.

It houses the remains of a 17th-century version of the Titanic.

Sweden's "good old days" painstakingly re-created in a model village.

This chimerical bridge/tunnel appears to dead end right into the sea.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

France's most famous cemetery, with some of its most curious tombs.