Abu El-Haggag Mosque in Luxor, Egypt. The old mosque actually sits within the ruins of the ancient Egyptian temple of Luxor. Whilst it does contrast some with the older ruins around, it still fits in quite well and at the right time of day the sun can be lovely on the minaret.

https://en.wikipedia.org/wiki/Abu_Haggag_Mosque

http://www.thefullwiki.org/Abu_Haggag_Mosque

https://en.wikipedia.org/wiki/Thebes,_Egypt

https://en.wikipedia.org/wiki/Luxor