The British Airways i360 observation tower in Brighton, England, on Tuesday., 2nd August 2016
The British Airways i360 observation tower in Brighton, England, on Tuesday., 2nd August 2016 © Glyn Kirk/Agence France-Presse — Getty Images

LONDON — It has been billed as “the world’s tallest moving observation tower,” a futuristic 531-foot-high structure that will give visitors an experience that one of its creators likened to floating in a hot-air balloon. Combining high-tech modernism with a somewhat incongruous Victorian seaside vibe, the tower, British Airways i360, opened on Thursday in the city of Brighton in southern England.