According to a satirical conspiracy theory that persists today, this German city of 300,000 is a hoax invented by the CIA.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

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

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

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Tiny memorials honor individual victims of the Holocaust.

Berlin's old airport.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

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

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

When an ancient supervolcano erupted, some of Nebraska's prehistoric animals were forever preserved in ash.

America's largest man-made forest was planted in an effort to bring back the past.

Site of the 1879 Cheyenne Outbreak and the site where famed Sioux chief Crazy Horse met his fate.

The home for all things Kool-Aid offers everything except a chance to actually enjoy the drink.

Otherworldly rock formations and ancient fossils abound in this unique stretch of Nebraska badlands.

This erect, phallic geological spire wasn't always named so domestically.

An experimental, automotive replica of Stonehenge.

The last SR-71 ever constructed.

This was the first homestead registered after President Abraham Lincoln signed the Homestead Act into law.

Four ionic columns from the Treasury Department building ended up in a park in Nebraska.

The largest collection of historical roller skates in the world.

This little gem of a museum is a hidden jewel filled with prehistoric treasures.

An ornate Art Deco tile mosaic representing Nebraskan life, both modern and prehistoric.