This is a mastaba, "Egyptian Tomb IWS-EGY-011," from Itar's Workshop and two identical columns, I'm not sure where from.
The old Ral Partha mindflayer and Reaper's Merith of the Flame are included for scale.
"Mastaba" is a comparatively modern Arabic word meaning "bench." The original Egyptian hieroglyphs read "pr-djt" or "pr-djed" and meant "house of the afterlife."
The hieroglyphs are gibberish (some are even sideways), which bugs me in a minor way.
Just as a side note, the mastaba is hollow with a reinforcing partition in the middle. I lined it with green felt with an idea to storing related minis inside. My husband has been referring to it as a dice cup.