An archaeological group recently discovered rather well preserved remains of a 12th century castle keep buried beneath a prison basketball court.

Gloucester, England has a long history, and as such there are many historical treasures to be found there.

An archaeological team evaluating a prison slated for redevelopment recently discovered one of them. 

Buried below the facility’s basketball court are the rather well preserved remains of a 12th century castle keep. 

According to Cotswold Archaeology, the company that performed the assessment, the 12-foot-wide keep wall belonged to the later of two royal residences built in the area. 

Constructed as