Franklin Storm Research Center

The Franklin Storm Research Center, formerly known as Central City, is a secret government facility became the headquarters for the Fantastic Four

Fantastic Four
The Central City Facility is an off the books government base that has been officially operating for over 12 years.

The military offered the facility to the Fantastic Four as a research work center after they defeated Doom. Johnny Storm renamed the facility after his father Franklin Storm.

Layout
The research center with a large facility built on top of the mountain. the Engineering section is on the south side of the building and Assembly area is located downstairs.