832-59721 - The Guggenheim Museum of Contemporary Art of Bilbao, nicknamed The Hole, contemporary museum built of titanium, limestone and glass, designed by Frank O. Gehry in 1997, Basque region, Spain, Europe
832-59727 - The Guggenheim Museum of Contemporary Art of Bilbao, nicknamed The Hole, contemporary museum built of titanium, limestone and glass, designed by Frank O. Gehry in 1997, Basque region, Spain, Europe
724-1728 - The Fairmont Chateau Laurier Hotel, a limestone building located in the heart of the capital, Ottawa, Ontario Province, Canada, North America
83-12202 - Baroque mestizo limestone facade of the Cathedral in this colonial-style provincial capital, Riobamba, Chimborazo Province, Central Highlands, Ecuador, South America
83-12219 - Baroque mestizo limestone facade of the Cathedral in this colonial-style provincial capital, Riobamba, Chimborazo Province, Central Highlands, Ecuador, South America
190-2383 - Cliff palace ruins dating from 1200-1300 AD shaded in limestone overhang, Mesa Verde, Mesa Verde National Park, UNESCO World Heritage Site, Colorado, United States of America (U.S.A.), North America