The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

A wall of chewing gum moonlights as collective art.

A colorful architectural gem in Seattle’s uniquely modern Central Library.

This impressive working clock made of 16,000 plants changes its flowers twice a year.

A luxuriant botanical garden below sea level.

This collection of Wild West movie memorabilia also claims to hold some secrets of the Lost Dutchman's mine.

In Tucson a giant metal snake helps pedestrians cross a busy highway.

Take a monster truck tour around an ostrich farm in the middle of the desert.

There aren't too many operational funiculars around, but Pittsburgh has two!

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

This beloved marketplace mascot poops money and grants good luck.

"We Seceded Where Others Failed."

After the oysters have been shucked, and the restaurant's been shuttered, the terrazzo sidewalk from the 1940s is all that remains.

Since 1929, this institution has been serving one of the most celebrated po’ boys in New Orleans.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

The second oldest continuously operating bar in Louisiana.

Inside this Icelandic greenhouse, geothermal energy keeps tomatoes warm and growing.

A tiny village church in dramatic surroundings.

Leave it to Key West to drop a real-live drag queen instead of a ball to mark the arrival of the New Year.

An idyllic swimming pool tells the tale of Hemingway's trouble with women.