
A robot arm with the head of a 3D printer piles concrete layers to build the "Europe's largest 3D-printed building" in Heidelberg, Germany, May 5, 2023. (Photo/Agencies)
Once completed at the end of July, the building will house computer servers in Heidelberg.

A robot arm with the head of a 3D printer piles concrete layers to build the "Europe's largest 3D-printed building" in Heidelberg, Germany, May 5, 2023. (Photo/Agencies)

A robot arm with the head of a 3D printer piles concrete layers to build the "Europe's largest 3D-printed building" in Heidelberg, Germany, May 5, 2023. (Photo/Agencies)

Aerial view of the construction site of the Europe's largest 3D printed building in Heidelberg, Germany, May 5, 2023. (Photo/Agencies)

Aerial view of the construction site of the Europe's largest 3D printed building in Heidelberg, Germany, May 5, 2023. (Photo/Agencies)