to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
San Bernardino alle Ossa, built 1210, Milan, Italy. The walls, doors, and pillars are completely covered in bones and skulls from an old ossuary and local graveyards. The Sebastiano Ricco frescos date from 1695.