The Museum Altes Zeughaus — the Old Armoury — occupies the original arsenal building and holds one of the largest collections of historical armour and weapons in Switzerland. Founded in 1610, the collection was preserved largely intact through the 18th and 19th centuries and now functions as a military history museum, though the sheer quantity of material on display gives it the feel of a proper arsenal rather than a conventional exhibition.
The highlights are the full suits of tournament armour and the ranks of halberds — the Swiss pike-and-axe weapon that gave the Swiss infantry their reputation across 15th-century Europe. The 16th-century firearms collection is also substantial. The building itself is a good example of late Renaissance civic architecture and the entrance portal is worth examining in detail.