Butlins site among landmarks protected by Historic Englandpublished at 10:26 Greenwich Mean Time 18 December 2017
David McKenna
Reporter, BBC News Online
The gardens where Billy Butlin opened his first holiday camp are among 20 unusual sites granted protected status by Historic England.
Skegness Esplanade and Tower Gardens were opened in 1936
A total of 1,041 historic sites have been given listed status in 2017, the government's heritage agency said.
Other landmarks include a Roman parade ground and acoustic mirrors used to detect aircraft prior to the invention of radar.
The agency said 99% of people live within a mile of a listed site.