Amoreira Aquaduct (1622). Ajuda Bridge (1510). Old Virginia City Flume Marion Street Bridge Lapa Bridge (Roman). Lapa Bridge (Roman). 3 bridges. Castles in the air wst / dsm - Pooley Tall Ships Race - departure from Lisbon. Crane about to remove Christ monument. View over Tagus River and April 25th bridge. View to Tagus River and the 17km long Vasco da Gam… Briwet Bridge / Pont Briwet A view to Douro River and the 1963 Arrábida Bridge… View over Douro River, its bridges and Vila Nova d… Ruins of abandoned copper mines. Twin towers. Bridge over Oeiras River. Lock of Crestuma-Lever Dam (1985). Lock of Crestuma-Lever Dam (1985). Hintze Ribeiro Bridge (1887), at Entre-os-Rios. Hintze Ribeiro Bridge (1887) and memorial to the v… Amoreira Aquaduct (1622). Rolling in the bridge Aqueduct (16th century). Debris channel Flume timbers Osceola Ditch Osceola Ditch whn - 9 steps visible Crooked River Canyon whn - 4 steps Mueller Tunnel Morrow Point Dam whn / wst - stormy December 2015 whn - inner calm The Artificial River whn / wst - inner splat Union Street Railroad Bridge Pillar of access to April 25th Bridge. Pillar of access to April 25th Bridge. Pillar of access to April 25th Bridge. Pillar of access to April 25th Bridge. Arno River and Carraia Bridge.