Close Biz & IT Tech Science Policy Cars Gaming & Culture Forums Videos Features Reviews RSS Feeds Mobile Site About Ars Staff Directory Contact Us Advertise with Ars Reprints Biz & IT Tech Science Policy Cars Gaming & Culture Forums Front page layout Grid List Unified Site theme Black on white White on black The Rise of Specialized Databases Sign in Sign up or login to join the discussions! Stay logged in | Having trouble? Sign up to comment and more Sign up cache hit 168:header/site-toggle:2a05a4cf44df398d720c458b68ecffc5 Ars Technica UK Annalee Newitz - Sep 2, 2016 4:45 pm UTC cache hit 168:single/related:4f5b081bf0d90bd6d07ba159a8371b7c empty Taken in 2014, this picture shows the partly blocked entrance to the Soviet-era bunker syste...