The Alexanderturm is a rare medieval tower in Mainz, built around 1500 atop Roman foundations dating back to the 4th century. Located on the grounds of the Kupferberg Sektkellerei in the Oberstadt district, the tower marks a historic bend in the ancient city wall where Roman and medieval fortifications once converged. Though not publicly accessible, the Alexanderturm remains one of three surviving towers from Mainz’s former city defenses, alongside the Holzturm and Eisenturm. Its cylindrical form and strategic placement reflect its original role as a watchtower guarding the western flank of Mogontiacum, the Roman precursor to Mainz. The site’s layered history—from Roman castrum to medieval stronghold—embodies the city’s enduring legacy as a crossroads of military, civic, and architectural evolution.
Mainz Germany
The Alexanderturm in Mainz is a late medieval city tower located on the private grounds of the Kupferberg-Sektkellerei in the Kästrich district of Mainz, specifically at Kupferbergterrasse 15, 55116 Mainz. This tower stands on the foundation of a Roman round tower and is surrounded by the picturesque vineyards of the Kupferberg winery. Nearby, visitors will find the Novotel Mainz hotel and charming restaurants, making the area a blend of historic ambiance and modern leisure. The tower is set away from the busy old town, offering a peaceful atmosphere close to the wine culture for which Mainz is well known, providing an appealing destination for both history enthusiasts and those looking to enjoy local wine and scenic views.
Museum
Landesmuseum Mainz
Museum
Naturhistorisches Museum Mainz
Museum
Bischöfliches Dom‑ und Diözesanmuseum
Museum
Mainzer Fastnachtsmuseum
Museum
Kupferberg‑Museum
Museum
Leibniz‑Zentrum für Archäologie
Museum
Stadthistorisches Museum Mainz
Museum
Garnisonsmuseum Mainz
Museum
Ziegelmuseum Mainz‑Bretzenheim
Museum
Museum für Antike Schifffahrt
Museum
Sanctuary of Isis and Magna Mater
Museum
Museum Castellum Mainz/Kastel
Museum
Deutsches KabarettArchiv und Museum
Museum
Staatstheater Mainz
Theatre
Mainzer Kammerspiele
Theatre
Galli Theater Mainz
Theatre
Frankfurter Hof
Theatre
Unterhaus
Theatre
Showbühne Mainz
Theatre
Römisches Theater Mainz
Historical Landmark
KUZ Kulturzentrum Mainz
Theatre
Kinder‑ und Jugendzentrum Reduit
Theatre
Galerie Art Mayence
Gallery
Galerie Haus zum Stein
Historical Landmark
Galerie Dr. Dorothea van der Koelen
Gallery
Kunsthalle Mainz
Gallery
Kurfürstliches Schloss
Historical Landmark
Haus zum Stein
Castle
Proviant‑Magazin der Festung Mainz
Historical Landmark
Eltzer Hof
Historical Landmark
St. Stephans Kirche
Church
St. Peterskirche
Church
Castle Gate
Historical Landmark
Mainz Cathedral
Cathedral
Markt Mainz
Square
Citadel Mainz
Fortress
Fastnachtsbrunnen
Historical Landmark
Kirschgarten
Square
Gutenberg Monument
Cultural landmark
Heunensäule
Tourist attractions
Drususstein
Historical Landmark
Arch of Dativius Victor
Historical Landmark
Römerpassage
Shopping Centre
Uferpromenade am Rhein
Tourist attractions
Great Mainz Jupiter Column
Historical Landmark
Botanischer Garten der Johannes Gutenberg‑Universität Mainz
Botanical Garden
Stadtpark Mainz
Park
Volkspark Mainz
Park
Wallgrünanlagen
Park
Wildpark Gonsenheim
Park
Hartenbergpark
Park
Eisenturm
Historic Landmark
Holzturm
Tourist attractions
Paul‑Baumann‑Sternwarte
Observatory