e/Doors Open Days

Information
has gloss	eng: Doors Open Days provides free access to buildings not normally open to the public. The first Doors Open Day took place in France in 1984, and the concept has spread to other places in Europe and North America.
lexicalization	eng: Doors Open Days
subclass of	(noun) the time during which someone's life continues; "the monarch's last days"; "in his final years" years, days
has instance	e/Doors Open Canada
has instance	e/Doors Open Newfoundland and Labrador
has instance	e/Heritage Open Days