A unique set of caves that spits waves back out into the ocean.

Once the site of the Hawaiian monarchy, this building was originally designed as a palace.

A lavender labyrinth so large it’s visible on Google Earth.

An unlikely beach paradise of giant sand dunes lies between two lakes just a few minutes from Michigan's cherry country.

These chunky stone towers out in Lake Michigan are the key to Chicago’s drinking water.

Today this bizarre rooftop phone booth seems like a piece of kitsch but it was once used to spot disastrous storms.

This botanical garden outside Chicago boasts an array of more than 300 varieties of lilacs.

The famous author's birthplace is preserved in a town that he once described as narrow-minded.

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

These pretty kitties killed and ate as many as 135 railway workers.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

Years of archaeology, just chillin' by the water cooler.

This architectural stunner is one of the few surviving Egyptian Revival theaters in the U.S.

The original vault that held the president's remains still stands, empty, not far from where he was finally buried.

The air force base preserves its scars from the Japanese attack on Pearl Harbor.

Elvis's own personal tropical hideaway.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

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

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

A giant pair of thick black glasses mark the tragic demise of a trio of rock and roll legends.

This massive roadside mascot was the first version of the giant to illustrate his butt.

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

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The first declared National Monument in the United States.