Built in the 1950s with the secret code name "Project Greek Island," the Greenbrier Bunker served as a top-secret relocation facility engineered to safeguard the United States Congress during the Cold War crisis.

It was fortified with a massive 25-ton blast door, detailed decontamination chambers, and entirely independent regional water and power networks. Today, this hidden complex is open to the public for educational guided tours.

Do You Need a Group to Tour the Greenbrier Bunker?

Clear answer first: No, individuals do not need to bring their own pre-formed group to tour the bunker. Solo travelers and couples are automatically combined into the standard daily public touring schedules.

Essential Bunker Tour Rules to Know Before You Go: