I find Islamic Architecture to be beautiful and fascinating. Symmetry, arched doorways, intricate motifs and beautiful colours are some things that many examples of Islamic Architecture have in common. At the same time there is a wide diversity in Islamic Architecture around the world. Here are some examples from my travels in four different countries in order of when they were built:
Kairouan, Tunisia. The Great Mosque of Kairouan, established in 670 AD.
Marrakech, Morocco. The Koutoubia Mosque, first built in the 12th century and the Ben Youssef Madrasa, founded in the 14th century.
Mazar-i-Sharif, Afghanistan. Shrine of Hazrat Ali, built in the 15th century.
Thatta, Pakistan. Jamia Masjid of Thatta aka Shah Jahan Mosque, 17th century.