This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

The largest ancient burial mound in Ohio.

A gas station has taken the place of the home of the 19th American President.

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

An unoccupied lighthouse encased in layers of ice from the waters of Lake Erie.

The inventor of a number of hybrid corn species is immortalized with a field of giant corn.

The largest earthwork effigy in the world.

This wooden home was built in West Virginia by a Scottish immigrant before being moved to an Israeli winery.

This "Jewish Sistine Chapel" was designed to reinvigorate Judaism's artistic legacy but was almost lost to misguided restoration.

This mysterious Lady Liberty stands at the entrance to a small Israeli village.

Over 20,000 sets of spice shakers reveal the surprisingly telling history of our most basic spices.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

This replica of the Greek structure is in the heart of Nashville.

Enormous lake at the bottom of a unique cave system.

This structure among the trees was the result of divine inspiration.

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

Better known as the "Body Farm," this unique research facility has been studying how human bodies break down since the 1980s.

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

Three courses accompanied by Christian rock.

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

This huge clock made of flowers and simple machinery was once used a political weapon.

Unique tower has outlasted a takeover of the company.

Kentucky, Tennessee, and Virginia meet at this point in the Cumberland Gap.