Ranked among the top cultural highlights in Thailand, the Grand Palace was built by none other than King Rama I. Dating back to 1792, the mammoth compound, which contains the Temple of the Emerald Buddha as well as the residential quarters of the Thai royal family, the Grand Palace is an iconic site on the banks of the Chao Phraya River. Although the palace is not a religious hotspot, those who are visiting the complex must be modestly dressed as Wat Phra Kaew and the veneration with which the Thais treat the royals means that only the decently dressed are admitted inside.