This regeneration cradle prints tissue, but it can’t build a living body.
The action shifts to Seoul, South Korea where Ultron takes over U-Gin Genetics, Dr Cho’s lab. The actual location is the Seoul Floating Island, in Seoul.
Int. U-Gin Genetics, Seoul
The interior of Dr Cho’s genetics lab, where Ultron attempts to transfer his consciousness into a synthetic body using The Cradle, was shot in Sanofi at the LondonEast UK Business & Technical Park (which was also used in Doctor Strange), according to Virtual Globetrotting.
(Avengers: Age of Ultron, 2015)