Yes.

Beneath the Greenbrier resort in West Virginia is a bunker with 3-foot-thick concrete walls, rows of metal bunkbeds (1,100 in all), a complicated air filtration system, meeting rooms, a communications center, and storage spaces. This was the secret home of the U.S. House and Senate in the event of a nuclear war. In effect, it was a shadow Capitol.

It was envisioned in the late 1950s as President Dwight Eisenhower tried to figure out how to maintain law and order after a nuclear war. In 1958, Project Greek Island broke ground. For more than 30 years, the U.S. government used a shadow company known as Forsyth Associates as a cover to maintain this secret bunker.

In 1992, the Washington Post exposed the bunker's existence, bringing an end to its usefulness as an emergency shelter. The Greenbrier has been replaced by other plans for the House and Senate, but those remain secret.