It is well known that Crystal Palce Park includes a number of Victorian dinosaur models, arranged in groups around the lower lake. Many of these species were recently discovered although not all the models are nowadays thought to be strictly accurate. Less well known is that alongside these animals there is a replica geological strata opposite.
This was built at the same time as an educational feature and was constructed from the true strata it was based on from Ashover in Derbyshire. Coal measures, limestone and millstone grit are part of the reconstruction. In addition, a 3/4 scale lead mine was constructed behind the face in carboniferous limestone; in the 19th century visitors could tour the mine. Inside they would find stalactites and lead ore veins.
The mine, along with the geological strata, is now grade I listed alongside the dinosaurs. No access is possible at it is allegedly unsafe (although the local authority responsible for the site was initially unaware of its existence when enquiries were made).