A multilayer glass comprising: a first glass plate of which the end portions are affixed to the interior of a fixing groove formed in the inner periphery of a frame; a second glass plate disposed to the outside of the fixing groove and disposed on the indoor side with the first glass plate serving as a reference; a spacer that forms an airtight space between the first glass plate and the second glass plate; and a fall prevention tool that prevents the second glass plate from dropping out to the outdoor side when the first glass plate breaks.
