A diverse, expansive nature preserve in northeastern Kansas.

The most visited, and possibly most controversial, museum in Germany.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Berlin's old airport.

This modest plaza in Moneygall, Ireland has cashed in on its distant connection to the U.S. president.

British troops and Prohibition couldn’t stop this spot from becoming one of the United States' oldest continuously-run taverns.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

The ship built to ferry passengers and goods to the doomed Titanic is now the last remaining White Star Line vessel.

The last Victorian market in Belfast.

Northern Ireland's Brobdingnagian stepping stones.

The walls of Germany's Parliament still show the scars of the Red Army takeover in World War II.

Lovingly nick-named the "Brick Dick" this municipal tower was winner of the World's Most Phallic Building Contest.

The 80-foot tire that looms over Michigan's I-94 was once a Ferris wheel in the New York World Fair.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

Detroit’s downtown castle is one of the oldest structures in the city.

One man's attempt to create an artistic wonder on a run-down block in Detroit.

Advice-columnist's bell tower, paid for with pennies.

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

The Magic House provides a beautiful and creative environment for curious youngsters to get their knowledge on.

A Bibliophile's Dream.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

A speakeasy takes on Chicago's drinking culture.