Stephenville has this building - I've always called it the octopus building because of it's arms, as have most people of my generation (under-30) but anyone who was alive when the American base was open calls it the "Mole Hole". It was built by the US Air Force as a barracks for on duty pilots and personnel. When there was a fighter squadron based here the pilots on duty would sleep here in one of the below ground barracks levels. The doors/hallways lead directly to the different basement levels, so if there was a threat and the planes were scrambled into the air pilots could run from their bomb sheltered barracks to their planes on an adjacent apron. Most recently it was an accountants office, but it's now for sale - for
$599,000.
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There are also a bunch of these bunkers littered around town, like interspersed among the golf course fairways. The town opens a couple in the summer for tourists to go into and walk around.
100_2580 by
Trevor 4, on Flickr