What I admire most about Islamic history is its rich multicultural architecture. Sultans of Turkey would send their designer architects to Africa, Malays and South Asia to mix with locals and integrate with them learning their traditions and their indigenous lifestyles. They would do all this just to blend in with the native culture which would later get reflected in their masterpieces.
The Taj Mahal is a symbol of that mindset. But possibly the best imprint of architectural multiculturalism is in Turkey. Here one will come across thoughts from all over the world coming together. It is also in Istanbul where the sultans chose Camis (masjids) to be the center of display of Islamic art and design.
Link for admirers of Islamic culture and architecture..