Every July or August, Ubon city hosts Hae Thian, the “Candle Festival,” to celebrate the beginning of Khao Pansa (Buddhist lent) with a parade of wax sculptures carved to exquisite detail by local artists. The main festivities last for only two days, but you can watch the artists at work during the six weeks leading up to the festival at practically every temple in Ubon city. Book your room in advance if planning to stay during Hae Thian — and expect inflated rates.