Lulu from Lulu's Bay is running a Pyramid Project Meme

Here are my contributions. 2 from Egypt, where I currently am and 2 from my home town in India.

Sadat's Memorial in Heliopolis - Cairo.

Natural formation which inspired the tombs in Valley of the Kings - Luxor.
Standard Tiled roofing in most houses in my home town.

The pyramid structure on the very top of a modern multi storeyed structure which retains the roofing element of the older dwellings.