
Photo: Roland Zumbühl (Picswiss), Arlesheim (Commons:Picswiss project), CC BY-SA 3.0 via Wikimedia Commons
This tower was built as part of the city walls. Its unique features are the blue roof as well as the astronomical clock. To visit, you get the key for a deposit (Tu-Sa) from nearby Wunderbox at Fischmarkt 10 or (outside the opening hours) from Restaurant Intermezzo at Grabenstrasse 6. On Mondays, the key is available from the library at St.-Oswalds-Gasse 21
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