Quantico

Quantico is a town located in Prince William County in the U.S. state of Virginia. It is most popularly known as the hub of the American military and federal law-enforcement apparatus. The Marine Corps Combat Development Command center is located here, as is the F.B.I. training academy the Drug Enforcement Agency training academy, and the Naval Criminal Investigative Service.

In fiction
The FOX Network television series The X-Files deals with elements of the Federal Bureau of Investigation. As such, the F.B.I. headquarters at Quantico makes occasional appearances in the series. When the "X-Files" project was temporarily shut down, Agent Dana Scully went back to Quantico to work as a medical instructor.

The character of Mieczyslaw "Stiles" Stilinski from the MTV series Teen Wolf became an intern at the F.B.I. academy shortly after graduating high school (the plausibility of which is highly improbable in a real world sense). On his first day, he witnessed a video that portrayed a wanted fugitive - Derek Hale - a man that Stiles actually knew from his home town of Beacon Hills.

TV shows that take place in

 * Teen Wolf: Said the Spider to the Fly
 * The X-Files: Little Green Men