Mom found this in the Smithsonian Journeys Magazine, Sheikh Zayed Bin Sultan Al Nahyan Mosque in Abu Dhabi. Oh, just look at this interior shot by manitoon on Flickr. Must see photos by Kinan Jarjous from Jar of Juice.
Blue Mosque, seen below, in Istanbul (Mom has been in this one)
Cairo Mosques, This is the first and oldest mosque ever built on the land of Egypt. Erected in 642 AD (21 AH) by Amr Ibn al'As Mosque. Khanqah, amazing.