Formerly the viceroy's palace, the National Museum is a must-see complex of traditional Thai structures. The front hall itself is highlighted by a monumental Buddha head from the Ayutthaya period that overlooks the whole exhibition space, while a stunningly graceful bronze Bodhisattva from the Srivijaya period takes center stage amid Khmer and Hindu sculptures. You'll also find carefully kept smaller pieces ranging from Buddhist art to delicate Rattanakosin-era puppets.