A wall covered by greenery.

plural of writing on the wall

(astronomy) A large impact crater that has a relatively flat floor, surrounded by a wall

plural of walled plain

(history) The deconstruction of the Berlin Wall in 1989 and 1990.

plural of curtain wall

(military, historical) The outer wall of a castle or defensive wall between two bastions. / (architecture) The non-load-bearing outer skin of a modern building.

A type of wall obstacle in an obstacle course with a flat straight vertical wall and a rope that is used to assist in climbing up the wall, and another rope to assist descending the reverse side of the wall.

A protective barrier that is used to protect against and impede the travel of a tsunami wave

a type of wall obstacle in obstacle course racing composed of a vertical wall of cross-beams with space in between the beams, where competitors must climb up the wall, go over, and climb back down