In terms of exterior ornament, the crown has to go to the Hassan II mosque. Built right on the edge of the sea—over the top of what used to be a grand public bath—this mosque was completed in 1993 and was designed by French architect Michel Pinseau for King Hassan II. It's the biggest mosque in Morocco and only one of a few that non-Muslims can visit. Photo 5 of 7 in Tiles of Casablanca by Aaron Britt

Tiles of Casablanca

5 of 7

In terms of exterior ornament, the crown has to go to the Hassan II mosque. Built right on the edge of the sea—over the top of what used to be a grand public bath—this mosque was completed in 1993 and was designed by French architect Michel Pinseau for King Hassan II. It's the biggest mosque in Morocco and only one of a few that non-Muslims can visit.