Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

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

The narrowest house in America is seven feet of pure spite.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

The world's largest indoor go-kart racetrack is hiding in Connecticut.

With some 500,000 books across five buildings, this bookstore is a reader's paradise.

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

A spiritual vortex among the red rocks in Sedona.

This classic steam-powered train takes tourists on a nostalgic trip around the Connecticut River Valley.

An Irish Memorial commemorating those who perished due to potato blight.

Believed to be the birthplace of the United States Marine Corps.

The resting place of a Civil War celebrity's amputated limb.

This plaque celebrates the sister city relationship between Fredricksburg and Fréjus.

The city of Halifax still bears the scars of the largest explosion prior to the atomic bomb.

Welcome sign announcing Haverhill, MA, as the birthplace of horror rocker/artist/director Rob Zombie.

This elaborate towering structure was once famed for its revolutionary height.

This massive Maya archaeological site is home to the tallest man-made structure in Belize.

This portion of a lovely Belize beach is infested with (harmless) sharks and rays.

A massive underwater sinkhole made famous by Jacques Cousteau.

The world's second largest single-dish radio telescope, once used to contact E.T.

The crumbling remnants of this 19th-century quarantine hospital hint at the touristy island's darker past.

This small fort played a huge role defending Puerto Rico’s capital city.