Located in Moscow's Red Square, St. Basil's Cathedral has been an architectural and design marvel, as no one can solidly identify the source of inspiration of the towers. The building was constructed in the late 16th century, dictated by Ivan the Terrible. The dazzling colors were not begun to be added until nearly a century after completion of the construction. In 17th century Russia, usage of bright colors became extremely popular.
This cathedral almost didn't survive – Stalin wanted it demolished, but the architect Pyotr Baranovsky given the assignment outright refused. Baranovsky served 5 years in prison for his protestation, and St. Basil's is now a museum and sought-after tourist attraction.