The word 'watchtowers' is correct and usable in written English.
It is commonly used to refer to tall structures built for the purpose of observing and monitoring the surrounding area. Example: The medieval castle was surrounded by several watchtowers, providing a vantage point for guards to keep a lookout for any approaching enemies.
Disputing the mayor's claims of authenticity, Wang points out that vital features of the wall's watchtowers, designed for functionality, have been altered for aesthetics.
Atop this, an array of 62 watchtowers, jutting out at regular intervals, formed a formidable line of defence.
Now, they peer out from shaded watchtowers at miles of flat water meadows where sheep graze and, on the northern horizon, at a low brown mud-brick village with some trees.
While many cities have spruced up old streets into shopping lanes or rebuilt ancient watchtowers, like Beijing, none have attempted it on Datong's scale.
The old walled towns are densely packed with medieval churches, Arabic forts, watchtowers, palaces, bodegas, tobacconists, scooters, bars full of bullfighting paraphernalia, kids on pink bicycles, and people eating fish at rickety tables that block the traffic.
In a few decades, the watchtowers along the West Bank's separation wall may merge with the helicopters hovering over the US-Mexican border, the rubber bullets knocking African refugees off the barbed-wire fences in the Spanish enclave of Melilla, the South African police picking up Zimbabwean migrants and the Australian Navy ships dragging Indonesian boats back towards Sumatra.
Nor would independent Scots face the prospect of barbed wire, border posts and watchtowers sprouting along some latter-day Hadrian's Wall.
Outside Gweru, another once-bustling industrial town, the grim watchtowers of Wha Wha prison come into view.
"We studied all the issues of Zaatari, compared, and tried to avoid them this time," says a Jordanian security man at Azraq.Smuggling will be more difficult, for example, because Azraq sits fenced in an inhospitable desert surrounded by watchtowers.
In the 1990s Greek and foreign researchers re-explored the network of military roads and watchtowers in eastern Crete that Evans had chosen to ignore.
The army mostly left, the watchtowers were pulled down and the spooks moved on.
