The canyon itself, named the Motlatse Canyon, is a gigantic and beautiful geological structure of red sandstone of iconic importance for South Africa. (tourthetropics.com)
The sheer red sandstone cliffs of Camelback Mountain have long been a draw for outdoor enthusiasts in Arizona. (sanctuaryoncamelback.com)
The Scottish National Portrait Gallery building is a large edifice at the east end of Queen Street, built in red sandstone from Corsehill in Dumfriesshire. (en.wikipedia.org)