A Space Coast landmark is no longer standing tall.

Demolition continues on a building that has kept America safe from a nuclear attack for decades. Crews have been tearing down the headquarters for the Air Force Technical Applications Center, or AFTAC.

The building has towered over State Road A1A since the mid-1950s.

AFTAC employs 1,000 people at Patrick Air Force Base in Brevard County.

The employees inside the building are responsible for monitoring nuclear activity around the world. A lot of what they do is hush-hush, but the building gained notoriety around the world because it was prominently featured on the TV series, "I Dream of Jeannie."

"I went back and looked at some of those episodes, and when you see Major Nelson go into headquarters to visit Dr. Bellows, that outdoor shot was this headquarters building," said Mike Young, command historian at AFTAC.

A new, $158 million facility located just behind the old AFTAC building went into operation last year. The newer facility has more room and allows AFTAC crews to do more lab analysis of samples collected from around the world to determine if it's enriched uranium.

"For 15 years, we had to outsource some of our laboratory analysis," Young said. "Now, we have this wonderful ability to not only bring it back in house to AFTAC, but to also put Air Force airmen — who are some of the best and brightest in service — back into the laboratory."

The only trouble with demolishing the old building? It's not easy to tear it town. It was built to withstand an attack.

Crews said the demolition should have the building completely leveled in the next three months.