Supertall Tokyo Sky Tree shrugs off quakes (photos)
The Tokyo Sky Tree is built on reclaimed land in quake-prone Japan, but engineers are confident the world's tallest tower won't topple.
Sky Tower steel truss
Nearly a year after the magnitude-9.0 quake that pummeled Japan, construction of the world's tallest tower, the Tokyo Sky Tree, is now complete. The Sky Tree's exterior steel truss changes shape from a triangle at the bottom to a circle near the top as it soars above eastern Tokyo.