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The Gate of Spalen (Spalentor) is a former city gate in the ancient city walls of Basel. One of the three remaining gateways, it is regarded as one of the most beautiful gates of Switzerland.
In October 1356, a major earthquake destroyed the old Basel. Then local people surrounded their newly built city with a high city wall and a moat in front of it. The ring wall had over 40 towers and seven of them were gate towers like the Spalentor (completed in 1473-74).