Where better to raise a glass to the setting sun than right on the Chao Phraya. At Sala Rattanakosin’s rooftop lounge, the sunset is even more magical because you get to watch the sky turn a gorgeous golden hue and provide a stunning backdrop to Wat Arun lighting up for the night from across the river. Come with a date or a get your mates together and book the hotel’s sunset package, which pairs stunning views with a bottle of bubbly and scrumptious snacks.