Imago Urbis: Giuseppe Vasi’s Grand Tour of Rome is a rich and innovative geographic database that projects Vasi's 18th century engravings of Roman architecture onto the contemporary map of Giambattista Nolli [previously] with supplementary modern satellite, photographic and mapping overlays together with copious background detail. The work was undertaken by researchers at the University of Oregon (announcement) [via]
posted on Jun 11, 2008 - View this thread

Architecture, Restoration, and Imaging of the Maya Cities of Uxmal, Kabah, Sayil, and Labná - a new extensive exhibition site from Reed College (with nice large images available). See: Contents. The site includes "19th and early 20th century drawings, prints, and photographs, showing the appearance of these four cities before the extensive restoration campaigns of the twentieth century [..and..] over 1000 recent photographs."
posted on Apr 9, 2008 - View this thread

The Cliff House was San Francisco Mayor Adolph Sutro's amazing 7-storey Victorian chateau built in 1896 and destroyed by fire in 1907. The Cliff House Project (photos) has a large and absorbing database of related material. [via the indefatigable gmtPlus9 (-15)]
posted on Dec 14, 2006 - View this thread

Metro Bits documents some of the most aesthetically pleasing world metro systems including the art/architecture, logos (variations on the 'M' theme) and views with a good selection of associated photographs and links. [via] (moscow)
posted on Aug 12, 2005 - View this thread

Action Squad – Urban Adventurers

"In a nutshell, Action Squad explores. This generally occurs late at night, to aid in avoiding other people, particularly those with badges and funny blue uniforms. We climb buildings, sneak into factories, crawl through all kinds of tunnels, spelunk old brewery caves, poke around abandoned buildings, and run across the rooftops."