A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.

Locals call this magical moss-covered walkway the "Emerald Path."

For decades, it has disappeared and reappeared as water levels rise and fall.

An abandoned railroad tunnel transformed into a creepy path for hikers and cyclists.

Where the oil industry began.

The Pennsylvania landscape depicted by a quarter mile of mosaics made from used road signs.

This public space is speckled with the eerie remnants of a defunct amusement park.

One of the oldest surviving lock houses on the Ohio River.

First a root beer ad, then a golf course clubhouse, and finally a massive teapot.

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

One of the few places where you can explore a 1918 paddlewheel steamboat from stem to stern.

This historic Ohio bridge is adorned with fanciful locks left behind by loving couples.

One of the few surviving examples of the first lock and dam system built on the Ohio River.

A table rock formation that has been intriguing West Virginians for years.

Thousands of tiny squares in different colors make up this piece of street art.

Kentucky's longest operating jail is now a spooky spot to spend the night.

The first KFC is on the National Register of Historic Places.

This boulder stays on its mountain thanks to a huge chain and on the map due to local legend.

A failed utopian experiment for British expats in the American South is now a Victorian village frozen in time.

A former 19th-century tavern, famous for its peach brandy and honey concoction.

The world's longest known cave system.

This tiny 19th-century tunnel was built so a man could move his cows from one field to another.

Eight rare Corvettes are swallowed up by a sinkhole in Kentucky's National Corvette Museum.

The remains of this visionary community can still be found much as it was a century ago.