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A family-friendly aquarium. Can have long lines at peak hours.
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Speyer Cathedral
The romanesque imperial cathedral, with crypta of the Salian Emperors. A UNESCO World Heritage Site
History museum
Technical Museum
Hall full of old cars and outside a number of aircraft and a small submarine you can walk through. Space exhibition which includes the Russian shuttle.
Altstadt
A 55 m high gate, part of the former fortification wall