Spasskaya Tower
The Spasskaya Tower was the first tower of the many Moscow Kremlin Towers to be crowned with the hipped roof in 1624–1625 by architects Bazhen Ogurtsov and Christopher Galloway (a Scottish architect and clock maker). According to a number of historical accounts, the clock on the Spasskaya Tower appeared between 1491 and 1585. It is usually referred to as the Kremlin chimes (Кремлёвские куранты) and designates official Moscow Time. The clock face has a diameter of . The gate of Spasskaya Tower was used to greet foreign dignitaries, and was also used during formal ceremonies or processions held on Red Square.