A heartwarming message to those entering and departing Music City from above.

This impressively large collection includes crackers shaped like Jimmy Carter, Mickey Mouse, and more.

Mysterious rocks that ring musically when struck.

This unusual subway stop was originally a real estate office.

Every animal in the torah taxidermied and crammed into a Brooklyn townhouse.

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

The façade of this building looks like a bingo board, but it's really a giant clock by a famed graphic designer.

Unrepaired walls from a 1920 anarchist bomb attack.

Possible relics of the ancient Roman city are hidden in this restaurant's façade.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

This wall on a street corner in Lower Manhattan has been a blank canvas for a rotation of renowned artists since the 1980s.

Red frames showcase remnants of one of New York's original subway stations.

The most confusing clock in New York.

Established in 1937, the oldest candy shop in New York City boasts a rainbow-colored inventory that would make Willy Wonka envious.

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

A taste of Middle Earth, in the middle of the Bayou City.

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

Erected in 1697 this Philadelphia bridge is the oldest surviving roadway bridge and perhaps the oldest stone bridge in the United States.

This strange, big-tailed beast became a Pennsylvania town's unofficial mascot.

This giant disembodied horse head seems to balance impossibly on its nose.

These 20-foot sculptures will help guide you from the local train station to the local sculpture garden.

An artsy hidden staircase leads to breathtaking views of San Francisco.

The oldest apple tree in the Pacific Northwest.

The U.S. Navy's last diesel-electric submarine rests half-submerged in the middle of Portland.