Snow blankets the ground around Celebration House, Finland's largest log building. Massive hand-hewn timbers rise in traditional Lappish craftsmanship. Inside, a stone fireplace crackles beneath a towering Christmas tree. Soft amber light fills carved wooden interiors. A 30-meter glass dome bar crowns the structure, opening panoramic views to the Saariselkä sky. This is where Santa Claus himself celebrates.Kakslauttanen Arctic Resort exists to gather people under extraordinary circumstances. Celebration House opened in 2021 as Northern Europe's largest privately owned planetarium theatre. It hosts product launches, chamber music concerts, wellness retreats, and gatherings for up to 250 guests. Art exhibitions showcase Finnish creativity alongside handcrafted textiles, ceramics, and decorative works inspired by Lapland. Modern audio and video technology sits within ancient log walls.