A communications and observation tower in Toronto, Ontario, Canada.

(historical) A siege weapon, consisting of a wheeled wooden tower with ladders inside, which was parked next to walls so assailants could safely scale them.

(mathematics) A chain of exponentiations, or raising to powers, of the form a^(aa...); tetration.

(mining) headframe.

Small, temporary scaffolding, often equipped with wheels, for small-scale building work

A tall residential or office building.

plural of tower block

A tower built as an architectural folly, i.e. for ornamental rather than practical reasons.

Alternative form of tower defense

A broch.