Seelturm, Medieval defense tower in Ulm, Germany
The Seelturm is a stone tower in Ulm built from precisely cut blocks that demonstrate medieval construction techniques. The structure displays the layered stonework typical of fortifications from this era.
The tower began as the Zundeltor, originally used to store gunpowder and tinder. Its purpose changed in 1870 when it was converted into a water storage facility.
The tower's name comes from the neighboring Seelhaus and reflects its connection to Ulm's urban growth. Today visitors can observe how this structure relates to the city's historical fabric and local identity.
The tower is located at Seelengraben 53 in Ulm and requires advance registration with SWU Energie GmbH to visit. Planning ahead is recommended since access is by appointment only.
The tower was part of an advanced water system dating back to the 14th century that used waterwheels to move water from the city moat to public wells. This engineering solution reveals how early the city pioneered infrastructure technology.
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