Wat Visoun, also known as Wat Wisunalat, is one of the oldest temples in Luang Prabang, Laos. This historic site is renowned for its distinctive architecture and houses a significant collection of Buddhist artifacts. The temple is especially noted for its impressive stupa, That Makmo, also known as the 'Watermelon Stupa' for its rounded shape. It provides a glimpse into the rich cultural and religious heritage of the region.