This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

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

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

Once the tallest building in the world and the site of “the highest dinner ever held in New York” this building now holds the most expensive penthouse in the city.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

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.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

The world's longest known cave system.

A local scoured more than 1,000 acres for stone to create his masterpiece.

An abandoned theme park with a strange and tumultuous past.

One of the few surviving "Wigwam"-themed motels.

Prehistoric animals decorate this popular outdoor park.

All that remains of a gigantic earth-moving machine.

Hundreds of 19th-century characters descend upon an Ohio town every autumn.

Bison, America's national mammal, are staging a slow comeback in Ohio's prairie parkland.

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

An office built to look like a giant basket.

A favorite of Amelia Earhart, ranking among those rare bridges that can be crossed without changing sides of the river.

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

These sub-farmland caves are home to a majestic stalactite known as the "Crystal King."

A local prank turned town icon.