Which was built first, the Theodosius Cistern or the German Fountain?
Theodosius Cistern: The Theodosius Cistern (Greek: Κινστέρνα Θεοδοσίου , Turkish: Şerefiye Sarnıcı ) is one of many ancient cisterns of Constantinople that lie beneath the city of Istanbul, Turkey. German Fountain:  It was constructed to commemorate the second anniversary of German Emperor Wilhelm II's visit to Istanbul in 1898.
Theodosius Cistern