This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
RSA ground floor plan. Floorplan of the Royal Institution building at Albemarle St Vera de Kok PDold Photographs by User Veertje Royal Institution Floor plans of buildings in the City of Westminster
Page 2023 Free-images.com. All images are Public Domain