Today, Google‘s homepage features a great illustration of St. Basil’s Cathedral. Dmitry Shvidkovsky via Wikipedia:
It is like no other Russian building. Nothing similar can be found in the entire millennium of Byzantine tradition from the fifth to fifteenth century … a strangeness that astonishes by its unexpectedness, complexity and dazzling interleaving of the manifold details of its design.
An architectural wonder and one of the most recognizable symbols of Russia, the cathedral has a history as colorful as its exterior.