Context: Distinguishing motifs of Islamic architecture have always been ordered repetition, radiating structures, and rhythmic, metric patterns. In this respect, fractal geometry has been a key utility, especially for mosques and palaces. Other features employed as motifs include columns, piers and arches, organized and interwoven with alternating sequences of niches and colonnettes. The role of domes in Islamic architecture has been considerable. Its usage spans centuries, first appearing in 691 with the construction of the Dome of the Rock mosque, and recurring even up until the 17th century with the Taj Mahal. And as late as the 19th century, Islamic domes had been incorporated into European architecture.

Question: What are the main distinctive features of Islamic architecture?
Answer: ordered repetition, radiating structures, and rhythmic, metric patterns

Question: What physical characteristics are common in Islamic architecture?
Answer: columns, piers and arches

Question: When did domes first appear in the architecture of the Muslim World?
Answer: 691

Question: Which mosque is believed to be the first with a dome?
Answer: Dome of the Rock mosque

Question: When was the Taj Mahal constructed?
Answer: 17th century

Question: What first appeared in Muslim architecture in the 6th century?
Answer: Unanswerable

Question: What mosque was built with a dome in the 6th century?
Answer: Unanswerable

Question: What structure was built using domes in the 1700's?
Answer: Unanswerable

Question: Where were Islamic domes used iin the 1900's?
Answer: Unanswerable