In Houston's airport, a cow is properly equipped to jump over the moon.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Locals dubbed it the "Owl Building" because of its bird-like appearance.

Witness to many historic moments in early Texas history.

The world's tallest statue of an American hero.

Cryptid lake monster honored with its own monument.

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

One part antique store, one part curiosities hodge-podge.

Beer lover's can-covered house.

A health museum containing a 27’’½-foot intestine.

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

Scary metal statues adorn some of the signature buildings of Burlington, Vermont.

This 38-drawer structure claims the superlative title, but it isn't the world's only giant filing cabinet.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

Visitors to this library are in for a real-world education in modernist architecture.

American revolutionaries and British soldiers alike are buried here in the fourth-ever cemetery in Boston.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

A museum dedicated to the quirky and colorful world created by Springfield's favorite son.

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

Life-size bronzes of the Grinch, Cat in the Hat, Yertle the Turtle, Sam-I-Am, and the Lorax—and the author himself.