The Pagan Wall (, ) is a huge construction about long which encircles Mont Sainte Odile. It is composed of about 300,000 blocks, between and wide and up to high. The origins and date of the wall are still disputed, with some claiming that it is a 3,000-year-old druid construction and more recent research suggesting that it dates from the 7th century AD, about the time that the convent was built. The designation Pagan is attributed to Pope Leo IX.