Author: Nikola Petrovski
Conglog Slate Quarry: an industrial site hidden among the Welsh mountains
Bryn Eglwys – The quarry the stood on top of three slate veins
The Fortifications of Gibraltar and their military legacy
Wye Valley Railway and its financial struggle since before the day it opened
Clifton Rocks Tunnel – Deep beneath Bristol
Chislehurst Caves: the former air-raid shelter where Jimi Hendrix, The Rolling Stones, Pink Floyd and David Bowie played concerts
