Wietrzychowice, Kuyavian-Pomeranian VoivodeshipWietrzychowice is a village in the administrative district of Gmina Izbica Kujawska, within Włocławek County, Kuyavian-Pomeranian Voivodeship, in north-central Poland.ArchaeologyA group of megalithic tombs called Polish Pyramids or Kuyavian Pyramids have been found in the adjacent forest. They are elongated mounds with a length of up to and a height of, probably belonging to Funnelbeaker culture during 4000 years BCE.