This winding road of 318 curves is a must-visit for (careful) motorcycle and sports car enthusiasts.

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.

The restored ferry is now a dockside museum and a unique bed and breakfast.

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

This 19th-century ghost town offers a stunning view of Lake Michigan and a journey through the region's industrial past.

This lone tree and dramatic sandstone outcropping are so beloved by Michiganders they can be found on one of the state’s coins.

While knives are the main feature in this store, visitors will also find dinosaur bones and meteorites.

An abandoned town is hidden in Great Smoky Mountains National Park.

One of two giant blue cockerel statues erected with an intentional double meaning.

The only arched bridge made of stone on the entire Mississippi River.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

Watch the ships come in on Michigan's 210 ft. high observation deck in Sault Ste. Marie.

Perched atop a brick smokestack, this enormous lug nut symbolizes the local minor league baseball team.

Dating back to the 1800s, two imposing buildings in Michigan have had countless transformations over the years.

The watery grave of an impractical idea.

Home to the Amorphophallus titanum "Corpse Flower," which is among the largest flowers in the world and also smells powerfully of rotting flesh when in bloom.

Four hundred granite steps were built into this massive rock by the National Park Service.

Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Quite simply the largest tree in the world (by volume).

Take a steam-powered ride straight out of the past on this Appalachian rail line.

One street divides a single town that stands in two U.S. states.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.