It's The Georgian Hall of The Kremlin Grand Palace, The Red Square, Moscow ~ this hall is the largest between five grand halls of the Kremlin Grand Palace. It was named in the honor of Russian Order of St George, founded by Catherine II of Russia in 1760s to award soldiers and officers of the lowest level of Russian Empire. The hall is decorated by gold, crystals and 200 varieties of most precious wood.
Amazing Architecture - Grand Staircase in House of Scientists, Lviv (Lemberg), Ukraine <= before 1945 = Lwów, POLAND => see history, actual till today ! https://www.pinterest.com/pin/349803096033334209/ & https://www.pinterest.com/szlachcic/news-ukraine-crisis-media/