A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

Iceland's largest geothermal mud pool is a little bit haunted and a little bit dangerous.

The unbelievably opulent home built for an infamous newspaperman.

The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.

A 19th-century Gothic, castle-like statehouse by the Mississippi River.

Abraham Lincoln's likeness rests at the top of this giant totem pole.

Elvis's own personal tropical hideaway.

Tiki luxury on Nob Hill.

When you can't get to the Pacific, just go to Florida.

This historic hotel invented the chocolate brownie.

Mining caused an asbestos emergency in this small town.

This elaborate towering structure was once famed for its revolutionary height.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Don't blink or you'll miss it.

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

The most magnificent bottle house in a town strangely full of them.

This museum holds a fully-functional replica of the "Turtle," the first American submarine ever built.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

An extravagant western hotel where every floor is the "ground floor."

The first car-centric shopping plaza in the U.S. brought a little bit of Spain to downtown Kansas City.

A tiny park off the beaten path covered in ingenious scrap metal sculptures.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

From toys to kettles to scientific instruments, this German museum celebrates the beauty of 20th century design.