On a clear evening, check out the 360-degree views around Marina Bay from 63 floors up at the city’s highest rooftop bar, 1 Altitude. After 6pm there’s a cover charge, which gets you one standard mixed drink. It’s a great spot for a sunset cocktail or a late-night dance party. Note that there is a smart casual dress code—no flip-flops. After 10pm, there’s an age limit of 21 for women and 25 for men.