Allure

Allure‏‎ Chemin de ronde

A chemin de ronde also called an allure, alure or, more prosaically, a wall-walk, is a raised protected walkway behind a castle battlement. In early fortifications ...

Allure or Wall-walk: passage behind the parapet of a castle wall. Apse: circular or polygonal end of a tower or chapel. Arcading: rows of arches supported on columns, free-standing or attached to a wall (blind arcade)