Barcelona

Barcelona's casino is a product of the city's late-1980s reinvention ahead of the 1992 Olympic Games: a modern harbourfront building inside the World Trade Center at Port Vell, with none of the historic pedigree of the atlas's older entries but a genuinely distinctive maritime setting, looking out over the old port's marina toward the wider Mediterranean.

As one of Europe's most visited cities, Barcelona's casino draws heavily on international tourism alongside a local Catalan clientele, and its position a short walk from Barceloneta beach and the old town makes it an easy evening addition to a much broader city visit rather than a standalone destination.