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The gilded opulence of a Buenos Aires ballroom, the hidden tunnels beneath Jerusalem’s Wailing Wall, and the cavernous innards of the biggest gasometers in Europe are some of the off-limits sites that can be glimpsed around the world this autumn, thanks to the growing phenomenon of the Open House weekend.
The initiative, which began in London in 1992 and celebrates its 22nd edition this week, has since spawned a global network of over 20 cities [...].
— theguardian.com
