To maximize exposure to sunlight, some solar array...  ...the concept and took it to its logical extreme by rotating the entire building to track the sun:Called the H...  ...entially "takes full advantage of the sun by rotating with it, allowing daylight to course though its t...

Back in 1st century A.D. (or C.E., if it pleases y...  ...filled in and built-over in 80A.D. Quite how the rotating dining room worked is still a bit of a mystery; s...  ...confirm one way or the other. In addition to the rotating floor, the opulent room featured fretted ivory ce...