The Cathedral of St. Basil

The Cathedral of St. Basil the Blessed was commissioned by Ivan the Terrible, and was built from 1555 to 1561, to commemorate the capture of the Khanate of Kazan. It consists of 9 chapels on a single foundation, with a tented church design. The initial idea was to build a cluster of chapels, one for each saint on whose day the Tsar had won a battle, but the construction of the central tower unified all into a cathedral.