"We Seceded Where Others Failed."

A monument celebrating the idea of reaching inaccessible places.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

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

Florida's oldest bar was once a morgue, complete with a hanging tree and gravestones.

The museum chronicling a treasure hunter's dream, fulfilled.

This statue inspired by Renoir's famous painting embodies the jovial spirit of Key West.

A historic presidential getaway on the continental United States' southernmost island.

Known as the "Cross At The Crossroads," this massive metal cross is just short enough to avoid the FAA.

The world's longest known cave system.

This tower-tomb honors a president who only held office for a little over a month but dedicated his life to his country.

The farm where one of America's greatest leaders was raised is now a well-appointed landmark.

You thought Santa Claus didn't exist, but it turns out you were wrong.

A giant concrete egg marks this Indiana town as the "Egg Basket of the Midwest."

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

This historic hotel invented the chocolate brownie.

A little-known subterranean street runs under some of the best-known buildings in Chicago's River North.

Once called the "Polish Gold Coast" it is an icon of the neighborhood that bears its same name.

Not to be confused with the iconic New York City skyscraper, this Chicago building is a vibrant hub for artists.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

A wartime promise becomes a shrine to Our Lady of Lourdes.

If astronomy had a ghost, it would look like this observatory.

A hidden network of subterranean passageways lies tangled beneath Indianapolis' bustling City Market.

The body of one of the world's most famous outlaws is covered in cement and iron to prevent it from being stolen.