plural of interlocking tower

A structure made of bars on a motorboat to which a wakeboard can be attached.

Either of a pair of structures built on each side of a river or harbour mouth from which defensive chains were raised or lowered

plural of chain tower

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

plural of conning tower

plural of clock tower

A crane, consisting of a balanced beam erected on top of a tall metal (normally self-erecting) tower, used in the construction of tall buildings

Alternative form of Leaning Tower of Pisa

A watchtower to search for fires in a forest. / In a high building, a stairway protected by several inches of concrete and entered through a kind of "air lock" that prevents the smoke to enter inside it.