A lush green oasis in the middle of Chicago.

A Bibliophile's Dream.

This shop for all your super spy needs hides an educational secret.

An eccentric park and pool.

A journey begins with a single step, and for many, the road-trip of a lifetime started at this Chicago intersection.

One of the oldest, tallest, and most haunted lighthouses in America.

Robots, lasers, and whoopee cushions, oh my!

A stone marker memorializes the spot where the King broke up a street fight with a classic karate stance.

Recognized the world over as the home of the McCallisters in the 1990 movie "Home Alone."

Atlanta's strange assortment of concrete pillars inspires reflection in some, confusion in others.

Mai Tais and Navy Grog served up in one of the original tiki bars.

One of corporate America's best-kept secrets is also one of the most publicly displayed.

Eat the ultimate iteration of Portugal's most beloved pastry.

Designed by Alfred Caldwel, this landscape showcases his vision of a native garden.

A hot dog stand where the heads are just as hot as the dogs.

A Japanese temple, old German townhouses, and public chess tables offer a peaceful escape from the bustle of the North Side.

The hall of fame for circus performers.

One of the oldest continuously operating amusement parks in the U.S. is an open-air museum of Art Deco and neon lights.

This holy goods emporium is where priests go for a little retail therapy to outfit their churches.

This saltwater swimming pool, which is the last of its kind in the United States, is slowly crumbling within sight of multiple high-end beachside hotels.

A forgotten Cold War relic hidden in the outskirts of a Wisconsin city.

This historic train station has been converted to a locomotive themed hotel.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.