A century of efforts to make Tokyo quake-proof

Tokyo looks nothing like it did in 1923 when the city, made up largely of wooden houses, was devastated by the 7.9-magnitude Great Kanto Earthquake, which killed around 105,000 people. A century later, thanks to state-of-the-art engineering and community preparations, some of the houses and skyscrapers of the Japanese metropolis can take quakes in stride.