For 10 points, name this palace complex behind Tiananmen Square in Beijing.
Blue tiles on the roof of one building in this place symbolically protect a library from flames; that is the Hall of Literary Glory. Twenty-five seals are contained here in the Hall of Union, as are clocks that were a gift from the Macartney Mission to a man who built the Palace of Tranquil Longevity after announcing his retirement. The caisson in this location's largest palace suspends a silver mirror that was said to fall on any non-emperor who dared to sit on the Dragon Throne. That building, the Hall of Supreme Harmony, is across the Golden River from the Meridian Gate. For 10 points, name this palace complex behind Tiananmen Square in Beijing.
Blue tiles on the roof of one building in this place symbolically protect a library from flames; that is the Hall of Literary Glory.
Forbidden City [accept "Gùgōng"]