Tokyo Skytree

This guide to Tokyo Skytree centers on March 11, 2011, when the still-unfinished tower swayed through the strongest earthquake ever recorded in Japan. It traces the race for height that had just made this the tallest tower on Earth, and an idea borrowed from centuries-old pagodas that engineers built straight into the tower's core. Listen for the story of Horyuji's ancient wooden pillar, still standing after more than a dozen centuries of tremors.