Openable Door

A recognized right of admittance : freedom of access also : a policy providing such freedom. 2 : a policy giving opportunity for commercial relations with a country to all nations on equal terms.Doors Open Days (also known as Open House or Open Days in some communities) provide 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 (see European Heritage Days), North America, Australia and elsewhere.