Man-made geyser that rises to the exact height of the Gateway Arch.

A historic hotel library in Indiana hides more than a few secrets on its shelves.

This Indiana walk of fame honors music legends with record-shaped plaques in the pavement.

A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

The oldest amusement park in the world has been providing a nice spot to have some fun since the 1500s.

Legend tells how a Spanish soldier disappeared from this isolated sentry box without a trace.

A wonderful and easily overlooked museum tucked in Ohio's Burke Lakefront Airport.

The overgrown remains of an old rail bridge rise above the valley like ancient Greek ruins.

A gas station has taken the place of the home of the 19th American President.

A monument to a Native American leader who was known for never breaking a promise and met his end after signing a deal with white settlers.

An unassuming 13-acre park is home to over 12,000 roses.

The entrance to this sinisterly named tunnel hides behind a Tim Hortons.

A single handprint, which, according to Ohio State University legend, cannot be scrubbed off.

This whimsical campus lawn is dotted with large sculpted numbers and hidden mathematical formulas.

A bronze of the man in all his sinewy glory celebrates his longtime connection to the Ohio city.

This burger joint is named after everyone's favorite carnival prize and is adorned with a giant one over the door.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

A bit of retro transportation flair preserved in the world's largest department store.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

Once thought to be the fabled Holy Grail, it is now known to be an oil lamp.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Long the exclusive domain of birds and vagabonds, this little-known Central Park peninsula is open to the public once more.