This week's theme on the Post is seaside architecture, prompted by the holiday season and by the recent publication of 20th Century Seaside Architecture: Pools, Piers and Pleasure Around Britain's Coast by Kathryn Ferry. as well as the fact that so many characters in fiction from Jane Austen's Persuasion onwards spend time at the seaside. The long Promenade forms the backdrop to Jane's restorative stay in Blackpool with Mrs Briggs in High Wages (1930), with Blackpool Tower (built 1894, seen here in 1920) then, as now, the resort's central feature.