The Alvastra pile-dwelling (Swedish: Alvastra pålbyggnad or Alvastraboplatsen) is a pile dwelling (also called a stilt house) from ca 3000 BC in Ödeshög Municipality, Östergötland County, Sweden. Southern Scandinavia has many types of cult centres, but the Alvastra pile dwelling is unique in Northern Europe and is the only of its kind outside of the Alpine Pile Dweller culture. It was the seasonal social and religious centre of a tribe that left objects from the Funnelbeaker culture, but pottery from the Pitted Ware culture, in the dwelling. Ca 2/3 of the pile dwelling was excavated by archaeologists in the years 1908–18, 1928–39 and 1976–80.