News video showed helicopters hovering over the gray watchtower of the prison.
From the latimes.com
He points to a watchtower like the remains of one found just outside the property.
From the al.com
The minaret served as a watchtower, as well as to call the faithful to prayer.
From the en.wikipedia.org
Later, it was used for a watchtower, and then for any tower where a bell was hung.
From the en.wikipedia.org
A watchtower at the top provides a 360-degree view of the entire area and village.
From the en.wikipedia.org
In the 13th century, a watchtower was built on the site of Bodysgallen Hall.
From the en.wikipedia.org
At the entrance to the port there is an English watchtower, which was built in 1800.
From the en.wikipedia.org
The tower was used either as a bell tower or watchtower, or possibly both.
From the en.wikipedia.org
It has had a rich history, serving as lighthouse, fortress and watchtower.
From the style.time.com
More examples
An observation tower for a lookout to watch over prisoners or watch for fires or enemies
A watchtower is a type of fortification used in many parts of the world. It differs from a regular tower in that its primary use is military, and from a turret in that it is usually a freestanding structure. ...
WatchTower is an American progressive metal band based in Austin, Texas. The band were influenced by late 70s progressive rock and acts such as Rush and UK as well as the burgeoning New Wave of British Heavy Metal. ...
The Watchtower is the name of various bases used by the Justice League of America in DC Comics and various other media. It has been portrayed in DC comics as a building on Earth's moon, and as a space-station in orbit in the Justice League Unlimited cartoon.
A Watchtower is a spirit guardian of one of the four cardinal points in both ceremonial magic and the neopagan religion of Wicca. Alternately, the Watchtowers are the abodes of the guardians. ...
The Watchtower Announcing Jehovah's Kingdom is an illustrated religious magazine, published monthly in 182 languages by Jehovah's Witnesses via the Watch Tower Bible and Tract Society of Pennsylvania and printed in Wallkill, New York, and branch offices around the world. ...
(Watchtowers) A concept derived from ceremonial magick; the four watchtowers each represent a cardinal direction, element, elemental, and a color. They are commonly used in modern Wicca.
(Watchtowers) another name for the four directions: North, South, East, and West.
(watchtowers) Originally from the Enochian branch of Ceremonial Magick, now incorporated into many "Traditions" of Wicca, these are the four elemental "directions" or "quarters" (corresponding to the appropriate points on the compass) called to protect the Circle during its establishment. ^5