In the so-called "Old Cathedral" in Mainz, which is today the evangelical Church of St John, archaeologists found the remains of another church built 1,200 years ago in the time of Charlemagne, Deacon Andreas Klodt said on Tuesday.
Archaeologists have discovered Germany’s second oldest church hidden within a cathedral in the west of the country [Credit:: DPA]
Only Trier on the Mosel River has an older church, with its cathedral dating back to Roman times, making the find the second oldest church in the country.
Professor Matthias Untermann from the Institute of Art History in Heidelberg said the remains of the Carolingian walls stretched from the basement to the roof.
“This is a big surprise,” he said.