Franciscan Monastery Museum in Aalborg, Denmark
In Aalborg, northern Denmark, a small underground museum occupies the site of a medieval monastery built by the Greyfriars, a monastic order following St. Francis of Assisi. Gråbrødreklostermuseet, or the Franciscan Monastery Museum, which opened in 2001, is hidden about 10 feet beneath a busy pedestrian street in the city center. The monastery operated from the 1240s until its closure in 1530. Visitors can explore the church foundations and monks’ quarters, where bones still jut from the walls, along with displayed intact skeletons, all signs of this former burial site. The museum also showcases Aalborg’s early history, featuring life before the monastery, remnants of a Viking market, and the city’s development after the monastery's closure.

In Aalborg, northern Denmark, a small underground museum occupies the site of a medieval monastery built by the Greyfriars, a monastic order following St. Francis of Assisi.
Gråbrødreklostermuseet, or the Franciscan Monastery Museum, which opened in 2001, is hidden about 10 feet beneath a busy pedestrian street in the city center. The monastery operated from the 1240s until its closure in 1530.
Visitors can explore the church foundations and monks’ quarters, where bones still jut from the walls, along with displayed intact skeletons, all signs of this former burial site. The museum also showcases Aalborg’s early history, featuring life before the monastery, remnants of a Viking market, and the city’s development after the monastery's closure.