832-246637 - The fort of "Castillo de San Carlos Borromeo", Spanish military architecture, Pampatar, Margarita Island, Caribbean, Venezuela, South America
832-136138 - A solar photovoltaic facility, built on top of a former landfill at the U.S. Army's Fort Carson uses contaminated land to generate renewable energy and generates 3, 200 megawatt-hours of power every year, Colorado Springs, Colorado, USA
832-136137 - A solar photovoltaic facility, built on top of a former landfill at the U.S. Army's Fort Carson uses contaminated land to generate renewable energy and generates 3, 200 megawatt-hours of power every year, Colorado Springs, Colorado, USA
817-406305 - Miguel de Cervantes Saavedra Monument and Don Juan de Austria fortified tower, Alcazar de San Juan, Ciudad Real province, Castilla La Mancha, the route of Don Quixote, Spain
857-34437 - Rock climber Beth Rodden crimping a hold with chalky hands on Renaissance Wall at the Lumpy Ridge climbing area in Rocky Mountain National Park outside of Fort Collins, Colorado. Beth Rodden is one of the world's leading free climbers.
83-12360 - Gate and battlements of Castillo Hidalgo, formerly a defensive fort dating from 1816, now restored to a public area and events venue, Santa Lucia Hill, Santiago, Chile, South America
777-1340 - Golden Gate Bridge from Fort Baker, Golden Gate National Recreation Area, San Francisco, California, United States of America, North America
777-1338 - Golden Gate Bridge from Fort Baker, Golden Gate National Recreation Area, San Francisco, California, United States of America, North America
747-311 - Bath house in settlement area, probably for civilian use, in Roman fort at Vindolanda, UNESCO World Heritage Site, Northumbria, England, United Kingdom, Europe
17-4300 - Coloured glass work inlaid into plaster in seating area of bedroom suite, Devi Garh Fort Palace Hotel, near Udaipur, Rajasthan state, India, Asia