From AtlasObscura.com (March 26, 2020):
…a team of designers recently looked at the now-ruined castles of Middle Ages Europe, lifting the fortifications up from their dilapidated states and digitally reimagining the structures as they were in their heyday.
Seven European castles were virtually rebuilt, restoring them from their keeps to their baileys. Architects pored over old paintings, blueprints, and other research documents that describe the strongholds, then offered their opinions to the NeoMam Studios design team, which digitally revived the structures from the ground up.
Boomers Daily 