Overview
- The site closes to the public starting Monday for several months, with reports citing five to six months, and reopening planned for spring 2026.
- Works aim to improve ventilation and drainage and curb water infiltration and microbial growth to stabilize conditions underground.
- The program will restore ossuary walls and decorative elements, upgrade technical systems, introduce new scenography with immersive headsets, and is budgeted at about €5.5 million.
- Additional surveillance cameras will be installed to deter handling or theft of bones as heavy footfall strains the fragile space.
- The museum welcomes roughly 600,000 visitors a year (about 2,000 daily), and crowds turned out this final weekend, including a special Sunday night opening.