The World Sauna Championships were an annual endurance contest held in Heinola, Finland, from 1999 to 2010. They originated from unofficial sauna-sitting competitions that resulted in a ban from a…

Survey markers, also called survey marks, survey monuments, or geodetic marks, are objects placed to mark key survey points on the Earth's surface. They are used in geodetic and land…

The PXL2000 or Pixelvision, was a toy black and white video camera, introduced by Fisher-Price in 1987 at the International Toy Fair in Manhattan, which could record sound and images…