OAK RIDGE, Tenn. (WATE) – The new K-25 History Center in Oak Ridge is opened its doors to the public on Thursday.

Located along Enrichment Street in Oak Ridge, K-25 was a secret site for uranium enrichment during World War II.

It was part of the Manhattan Project to preparing the atomic bombs that fell on Hiroshima and Nagasaki.

The museum is split into different periods stretching from before World War II to the demolition of K-25 and the U.S. Department of Energy’s plans for the site.

A ribbon-cutting was held at 10:30 a.m. Thursday. Admission to the museum is free.