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by drugodragodiego on Flickr
Catedral de Santiago de Compostela in Spain
Salamanca's Cathedral Spain
Mezquita - Catedral, Cordoba, Spain
Vakil Mosque - Shiraz, Iran
Al-Qarawiyyin (Al-Karaouine) University, Fez, Morocco. Possibly the oldest university in the world. Photo Airzouh Photography
Amiens Cathedral - places of worship
Bridge on Fire - Sibley, Trenton, MI | by Jamie Mink | via vmburkhardt
Gloucester Cathedral, England
Sintra - Castelo Pena,Portugal
Madrid High Trestle Bridge: The 13-story high bridge over the Des Moines river is a half mile long and was built on concrete piers that previously held a railroad bridge. 41 steel frames form a twisting tunnel.
st louis arch