Visitors are taking pictures and walking through a marble room during a tour of the Bergtatt mine in Eide, Norway, on January 30, 2024. Bergtatt, an impressive marble mine situated in the county of More og Romsdal, offers guided tours through its subterranean caves. The tour experience includes a boat ride on an illuminated underground lake and a visit to a concert hall carved into the marble. (Photo by Jorge Mantilla/NurPhoto) (Photo by Jorge Mantilla / NurPhoto / NurPhoto via AFP)