A Unique subterranean museum in the 'Cannerberg' near
Maastricht, since 1996 an officially designated national
monument One of the worlds best provided preserved marlstone
quarries, the 'Jezuitenberg (Jesuit Caves)', is located on the
outskirts of the city of Maastricht, close to the Belgian
border. Exploitation of this quarry, which forms part of the
'Fallenberg-complex', took place between 1704 and 1880, when
marlstone was widely used as building material. Owing to the
Jesuit Fathers there now is a subterranean museum in this vast
network of galleries. Between 1860 and 1960 Jesuit scholars and
theological students spent a great deal of their leisure time on
Wednesday afternoons in this quarry where they recreated after
their strenuous studies. Apart from the many interesting studies
and publications they produced, they drew a full scale floor
plan of the quarry's gallery network, and moreover, they created
numerous charcoal and coloured drawings on the cave's walls.
Furthermore they carved a large number of