...and along with their obsession for all things educational, anything that can possibly be shown off in the comforts of an air-conditioned building will sooner of later end up on display in a glass case.
Riyadh’s museums are many and varied and as often as not, exhibits are labelled in both Arabic and English.
Many discourage photography or ban it altogether. Others are more laid back if you want to take pictures for personal use.
Apart from the main museums, your biggest problem could be in locating a particular building in the first place; and after that, persuading security or reception to let you in!