20 Fenchurch Street is the City skyscraper Londoners know as the Walkie Talkie, a top-heavy Rafael Vinoly tower that became famous for all the wrong reasons when reflected sunlight from its curved glass melted car parts on the street below.
The public draw is the Sky Garden at the top. Book ahead and you get one of the best free views in central London, with the Thames, Tower Bridge, the Shard, and the dense City skyline spread out below.