The Romans toted off one pyramid.................I guess that was enough for them....................
They also carted off several obelisks.
I'd never heard the Romans snagged a pyramid. They did nab a bunch of obelisks, I believe more Egyptian obelisks stand in Rome today (thanks to the Empire's shipping) than stand in Egypt. There's a 350 ton one that was moved by ship for Caligula; the ship was such a spectacle, it was kept around for years just as a tourist attraction. His successor Claudius had the ship sunk nose down into the water for use as a form to pour the concrete mole they used to 'anchor' the end of the pier when he built the all-season harbor. Kids out there who want a subject for their dissertation, or a research project to suck down some grants, could do worse than to study that ship -- either it is still there, partially preserved, or an exact negative impression of the *interior* still exists, underground, in concrete.