Udon Thani is a provincial capital city in northeast Thailand. Wat Phothisomphon is a Buddhist temple complex from the 1800s, with a 21st-century pagoda. In Udon Thani Park, Nong Prachak Lake has an island with a plant-filled garden. The Udon Sunshine Orchid Farm grows a breed of orchids known for their fragrance. East of the city is Ban Chiang, an archaeological site with Bronze Age farming and burial artifacts.