Ten kościół nie ma filarów ani podpór! Budowali go własnymi rękami parafianie, dziś remontują alpiniści na linach

In brief

Renovations are underway at the Sanktuarium Miłosierdzia Bożego in Kalisz to secure its reinforced concrete structure and repair its towers. Because the church lacks internal pillars or supports, workers are using ropes to access the building during the repairs.

The sanctuary features a design consisting of a single concrete shell that is only 6 cm thick at its thinnest point. The structure was originally designed by a mathematician and a student and was built by the local parishioners.