Arktikum is a stunning science center and museum presenting Arctic nature, cultures, and history. The building features a striking 172-meter glass corridor extending underground toward the Ounasjoki River. It houses exhibitions on Sami indigenous life, Arctic wildlife, natural phenomena including the Northern Lights, and Lapland's history from Ice Age to present. The Polarium section explains Arctic science and climate change. Record 172,661 visitors in 2025 made it the most visited year ever. Plan 1-3 hours for a thorough visit.