the duivelsgrot in the jekervallei close to maastricht on a sunny autumn day in december. this cave is a landmark in the scenery

ancient architecture autumn background beautiful blue brown building cave close countryside day december devil devils duivelsgrot english environment farm field forest grass green jekervallei jekervalley known landmark landscape maastricht marl marlstone meadow mountain natural nature old outdoor outdoors park pattern plant quarry rock rural scenery scenic sky spring stone structure summer sunny texture this tourism travel tree trees view wall well white yellow