Supersized subterranean structures that were left to rot
From nuclear bunkers to covert bases, there are a surprising number of massive underground structures dotted around the world that were built at great cost but ultimately abandoned. Read on for a look inside some of the staggering subterranean projects that lie dormant in 2024 and find out how much they cost to build in today's money.
All dollar values in US dollars.
Daniel Coughlin
11 January 2024
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