The Best Sight in Sintra, the Estoril Coast, and the Setúbal Peninsula, Portugal

Thought to have inspired the James Bond novel (and subsequent movie) Casino Royale, the glitzy Casino Estoril retains a glamorous allure. It's one of the largest casinos in Europe, with a nightclub, art gallery, bars, and restaurants alongside the gambling salons. You can make an evening of it here, with dinner and dancing to live music or DJs, but it's a pricey night out.