Divers exploring an 1840s shipwreck off the coast of Föglö in 2010 raised 162 bottles of Champagne, the world’s oldest. Two bottles were auctioned in 2011 for the princely sum of €54,000; you can see a couple more in the Ålands Kulturhistoriska, along with some other artefacts and a model of the shipwreck.
The divers also retrieved five bottles of 19th-century corked beer. The contents were analysed by the Technical Research Centre of Finland (VTT), and the master brewers at Stallhagen Brewery re-created the original recipe, which makes for a light but refreshing ale. You can sample it at the brewery.