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A trail leads visitors to the Pinnacle Overlook, which offers spectacular views of the landscape surrounding Cumberland Gap National Historical Park
Nearly a thousand years ago natives inhabited the plains between the Painted Desert and the San Francisco Peaks of Arizona. In an area so dry it would seem impossible to live, they built pueblos, harvested rainwater, grew crops and raised families. Today the remnants of their villages dot the landscape. Citadel Mesa Pueblo is in Wupatki National Monument, established in 1924 to preserve this rich heritage. Wupatki National Monument is near Flagstaff, Arizona, USA.
many Sandbags of a dug in the ground to defend army soldiers from enemy raids and explosions
Ewa district, Nauru: World War II Japanese bunker / concrete pill box in the jungle - Imperial Japanese troops occupied Nauru on 25 August 1942. Nipponic troops controlled the island until 13 September 1945, when Captain Hisayaki Soeda surrendered the island to the Australian forces.
Elephant Rocks SP - Engine House Ruin - Granite Wall & One Window
The Park of the Herd - Turin
Grren vegetation between tree trunks and stone wall in forest in Europe.
Closeup old stone wall with moss in autumn, background with copy space, full frame horizontal composition
Scenery at Harper's Ferry, WV, USA
Between 1100AD and 1200AD native people inhabited the plains between the Painted Desert and the San Francisco Peaks of Arizona.  In an area so dry it would seem impossible to live, they built pueblos, harvested rainwater, grew crops and raised families.  Their way of life was the key to survival in this harsh landscape.  These people survived here, farming one of the warmest and driest places on the Colorado Plateau.  They developed the skills to farm the land and endure hardship in an area where many would not.  Today the remnants of their villages dot the landscape.  Kaibab House Pueblo is in Wupatki National Monument, established in 1924 to preserve this rich heritage.  Wupatki National Monument is near Flagstaff, Arizona, USA.
Photo Taken At Raven Rock State Park, Lillington, Harnett County, North Carolina\n\nRaven Rock State Park is a North Carolina state park in Harnett County, North Carolina in the United States. Located near Lillington, North Carolina, it covers 4,810 acres along the banks of the Cape Fear River. Raven Rock State Park is located on the eastern edge of the Piedmont.
Part of ruined castel of Armazi. Mtskheta, Georgia
Thunder Ridge Overlook
Autumnal leaves in Tannersville, New York State.
Old remains of a bunker in the Palatinate Forest
Fort Union preservation in New Mexico exposed to the wind, within a sweeping valley of short grass prairie, amid the swales of the Santa Fe trail, is the remnants of the largest 19th century military fort in the region of New Mexico, in southwest USA.
Stone wall in the forest in Virginia on the Appalachian Trail
Elden Pueblo is the site of an ancient Sinagua community that was inhabited from about 1070 AD to 1275. The site is unique in that it is thought to have been part of a trading system. Trade items such as macaw skeletons from Mexico and shell jewelry from the California Coast have been discovered. The site is managed by the Coconino National Forest. Elden Pueblo is near Flagstaff, Arizona, USA.
Rock wall alongside a trail
Close up to ruines of Ujarma fortress. Kakheti region, Georgia
close up of the enclosure wall of Sarmizegetusa fortress in Orastiei mountains, Romania
Moss covered stone dyke in Borre National Park
stone foundation where a house once stood   at the quabbin reservoir,
Old rough rugged stone wall or exterior structure from 1880s gold mining town in Colorado in the town of Victor in western USA of North America.
The Graines castle in the Aosta Valley, with its ruined walls
Namhansanseong Fortress, korea
Homestead remains.
Seoul, Korea
Stone walls of a 19th century mill in Gay City State Park, Hebron, Connecticut, wide angle horizontal.
View from Ujarma fortress to river Iori in winter. Kakheti region, Georgia
Free Images: "bestof:Fort mountain wall 01.JPG en Wall ruins in Fort Mountain State Park 2012-03-21 own Thomsonmg2000 cc-zero Uploaded with UploadWizard Fort Mountain State Park"
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