The Operation Crossbow Site is a historic location at Eglin Air Force Base

Eglin Air Force Base

Eglin Air Force Base is a United States Air Force base located approximately 3 miles southwest of Valparaiso, Florida in Okaloosa County....

, Florida

Florida

Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...

. During the war a reconstruction of a German V-1 flying bomb

V-1 flying bomb

The V-1 flying bomb, also known as the Buzz Bomb or Doodlebug, was an early pulse-jet-powered predecessor of the cruise missile....

 launch site was built to test the measures needed to destroy the actual bases in France.

On October 22, 1998, it was added to the U.S.

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 National Register of Historic Places

National Register of Historic Places

The National Register of Historic Places is the United States government's official list of districts, sites, buildings, structures, and objects deemed worthy of preservation...

.

The Site was built in a hurry, "working around the clock for 13 days" in 1944 on a "remote part of the Eglin reservation".

Current state

"Portions of nine concrete and brick structures" remain on the 14-acre site. Some buildings are "virtually intact and show little damage from the many attempts over the years to destroy them."