Pensacola's UFO home has withstood many hurricanes—just as the experimental 1960s design intended.

The oldest operational cathedral in the U.S. has one shell of a way of projecting speakers' voices.

This cathedral dedicated to Louis IX, sainted King of France, holds many secrets.

This float factory takes the mask off of Mardi Gras and lets visitors see where the magic happens.

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

Elvis's own personal tropical hideaway.

A bizarre roadside attraction and the first instance of miniature golf in the world.

This museum is dedicated to preserving Minnesota's lake culture through displays of vintage watercraft and rotating exhibits.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

Eight feet in diameter and more than 24 feet around.

Step back in time while shopping inside this local store.

The Iowa state contender for largest pan in the world oddly only comes in second or so.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

This bright yellow building is packed with sweet treats from all around the world, from chocolate-covered crickets to whoopie pies.

In 1953, a group of Wisconsin high school students helped build a hospital by collecting over a million pennies.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

Restaurant in Northern Wisconsin comes with a unique feature: a grassy roof covered in living goats.

This pebble beach is so beautiful that taking its rocks is against the law.

America's largest viking stands in a Minnesota city that believes it was visited by the ancient nords.

Nicknamed the "Grand Canyon of the North," this open-pit mine in Minnesota has a much shorter history.

The world's largest floating loon bobs in the lake to kick off an annual festival.

This picturesque cliffside beacon no longer calls to sailors but shines once a year in honor of a famous shipwreck.

When waves crash onto this section of beach, the rocks sing a song.