Building the LBT--Large Binocular Telescope.
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Tons of photos from start to finish including some fairly large-scale machine work. But be warned, these guys don't seem to believe in actually compressing images--I suppose you should expect that from a bunch of astronomers. (: But the thumbnails are all pretty big and clear. Includes a mess of links to making the enclosure, mirrors, motors, you name it. Have fun.