+A **parapet** is a low protective wall, often an upward extension of a [wall](/wiki/wall) at the edge of a [roof](/wiki/roof), balcony, or bridge. It functions as a barrier, preventing falls and sometimes serving as a defensive feature in [fortification](/wiki/fortification).
+## See also
+- [Battlement](/wiki/battlement)
+- [Crenellation](/wiki/crenellation)
+- [Railing](/wiki/railing)