How do you recycle a pyramid?

Answer 1

If you mean an Egyptian pyramid, you should only recycle it when it is of no further use. That is unlikely to happen.

During the years historical sites have been damaged by people "recycling" blocks of stone for their own use (building their own historic monument to themselves). Not a good idea.

Before the days of mass tourism it made good sense to recycle redundant and probably abandoned buildings. Why go to the trouble of quarrying when so much cut stone is available?

England would have been deprived of many of its fine medieval parish churches if stone had not been recovered from abandoned Roman villas.