Dumbarton Rock and Castle, Storm Clouds, Firth of Clyde, Scotland, United Kingdom, Europe

photography horizontal color image travel travel destinations outdoors day no people scotland uk united kingdom europe dumbarton rock rock formation rock dumbarton castle castle fortress built structure architecture storm cloud moody sky firth of clyde sea water building tree nature cloud sky hill landscape travel destination tourist destination tourist destinations seas ocean oceans rocks rock formations outdoor outside nobody no one no person hills physical geography fort forts fortresses past history historic archaeological archaeology ruin ruins old ruin old ruins daytime castles fortified fortification historical buildings