Pfahlbaumuseum Unteruhldingen (German for 'Stilt house museum') is an archaeological open-air museum on Lake Constance (Bodensee) in Unteruhldingen, Germany, consisting of reconstructions of stilt houses or lake dwellings from the Neolithic and Bronze Age.

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The museum consists of a number of exhibits displaying archeological finds from the area and period.

The archaeological open-air museum is laid out over a large area with reconstructions of lake pile dwellings from 4000 BC to 850 BC. The museum was opened in 1922 with various reconstructions being added up until the present day.

• Prehistoric pile dwellings around the Alps
• Post in ground
• Neolithic Europe
• Bronze Age Europe
• Urnfield culture