Sechseläutenplatz, Zürich

Sechselautenplatz is the largest town square in Zurich, Switzerland, where prehistoric pile dwellings dating to 3234-2727 BC were discovered in 2009 during construction of an underground parking facility. Between 130 and 300 people once lived in a Neolithic village of stilt houses built on the marshy land between the Limmat and Lake Zurich. The site is part of the UNESCO World Heritage-listed Prehistoric Pile Dwellings around the Alps. Notable finds include the second oldest preserved wooden door in the world. An archaeological window in the Parkhaus Opera car park displays original artifacts and sediment layers free of charge.