In the evening, you may visit the Casino at Marina Bay Sands which is free to enter for foreigners. Then go to the terrace bar at Marina Bay Sands called CE LA VI. If you just want to enjoy the view, you can goto upto the hotel sky deck for a fee.
While technically three buildings, the Marina Sands consists of three asymmetric towers topped and connected by a three-acre park packed with jogging paths, swimming pools and gardens. The building is connected at the ground-level via a continuous lobby. The Marina Sands is the centerpiece of a much larger casino and resort area. Architect Moshe Safdie designed the multi-purpose building to evoke the shape of a deck of cards, as well as meet the harmonizing principles of feng shui. It holds accommodations for up to 45,000 people and sports a casino, convention center, and even a museum. The Shard, London