The fifth-longest natural arch in the world, and the longest outside China.

This raised bulls-eye visible from space was the subject of an intense geologic controversy.

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

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

The world's largest rotating world.

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

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

The 606 is a decade in the making.

First planned industrial community in the United States.

Chicago's North Park Village was once the largest municipal sanatorium in the country.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

A display of magnificent stained glass windows is the first exhibit of its kind.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

A lush green oasis in the middle of Chicago.

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

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

Two stone columns flank the grand Venice square, but there were supposed to be three.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

Where the lovelorn find a home for their sentimental keepsakes.

The big toe of this towering monument to a Croatian national hero is worn from years of superstitious rubbing.

The small peaceful island off the Venice tourist circuit is where the city began more than 1,500 years ago.