2nd StopAfter marveling at the beauty of the Erawan Museum, head to the Ancient City. It is one of the largest open-air museums in the world and features more than 100 replicas of Thailand's famous monuments and architectural attractions. The grounds mimic the precise shape of Thailand with sections divided by region. You’ll find structures like temples, chedis, pavilions, halls, floating markets, statues, shrines, palaces, and more. (Please note that this includes time for transportation between locations.)