WWII was fraught with bombings as evidenced by the massive destruction in major cities across the continent and of course, in London.
![Moscow Metro Tunnel](http://gerikrotow.com/WP/wp-content/uploads/2013/10/MoscowMetro-206x300.jpg)
When we lived in Moscow I had the opportunity to use the Metro daily. Each quick trip to a market or museum was steeped in WWII history, as the Moscow Metro was used as a bomb shelter during WWII.
![The Moscow Metro is its own museum](http://gerikrotow.com/WP/wp-content/uploads/2013/10/MosaicMoscowMetro-300x225.jpg)
It isn’t hard to imagine masses of people huddled in these tunnels, hoping they’d survive, that their homes would still be there when they crawled out.