Istanbul mosque gets ready for next quake

Current makeover is the first time the site will undergo a 'global restoration'

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The Hagia Sophia of Istanbul is no stranger to change through the centuries, the city’s architectural jewel has gone from church to mosque to museum, and back to mosque again.

But the latest renovation aims not only to restore the wonders of the 1,488-year gem, but to ensure it survives the next earthquake.