I discovered this pyramid while thrifting last weekend. I assume it's a souvenir of someones trip to Egypt. The pyramid is 6 inches at the base (per side) and 6 inches tall. The top is removable, revealing a room 3 inches to the side. The top makes a nice smaller pyramid. I've included a 25/28mm miniature from Metal Magic. It only set me back 8 dollars U.S. I feel it would be equally at home in Egypt, Atlantis or Mars!