Wat Arun or the Temple of Dawn is a Buddhist temple on the west bank of the Chao Phraya River in Bangkok. Its name comes from the Indian god Aruna. Wat Arun is one of the best known of Bangkok landmarks and often used as the icon for the city. Although the temple has existed since at least the seventeenth century, its distinctive prang spires were built in the early nineteenth century during the reign of Rama II. The main feature of Wat Arun is its central Khmer-style prang towers which are encrusted with colorful porcelain and ceramics.