100 year tradition of fist fights, marked by marble footsteps.

As can be expected from a centuries old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

The childhood home of one of Ohio's favorite sons, pilot and war hero Eddie Rickenbacker.

This massive airship factory is so large that it has its own indoor weather.

A wonderful and easily overlooked museum tucked in Ohio's Burke Lakefront Airport.

The site of Neil Armstrong's first flight is marked by a full on replica of the moon landers.

The crash of this great airship signaled the beginning of the end for dirigibles.

The world's first aircraft factory has been hiding inside an automobile plant for almost 80 years.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.

An out-of-place Air Force radar dome is all that denotes this park as a former missile launch site.

The most historic church in Fairfax County played a role in the creation of the American Red Cross.

One of the oldest train stations still standing in Virginia played a vital role during the Civil War.

A 14-foot monument marks the resting place of two of the town's earliest residents—and one unknown soldier.

A museum in the building where Nazi Germany signed its surrender tells the story of World War II from the Soviet perspective.

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

The first (but not only) upside-down house in Germany.

The sweet story of how American cargo planes became known as "Candy Bombers" during the Berlin Blockade.

The NASA scientists behind Apollo 11 started out developing Nazi weapons at this abandoned German rocket factory.

One of the most easily accessible examples of the rare 1960s UFO houses.

Built to test magnetically levitated elevators, the tower also boasts Germany's highest visitor platform.

Legendary site where an evil bishop was devoured by rodents.

A fearsome dragon clings to a corner of Munich's city hall.

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.