Sure are a lot of unexploded WW2 bombs being discovered (and causing evacuations of important areas) this year…
5/11 - Hong Kong - Russian consulate evacuated
http://tass.com/world/1003784
http://www.asiaone.com/asia/hundreds-evacuated-hong-kong-after-third-wwii-bomb-found-year
4/20 - Berlin - central train station, Govt ministries and BND intelligence agency evacuated
http://www.latimes.com/world/la-fg-germany-berlin-bomb-20180420-story.html
2/12 - London City Airport evacuated
http://www.bbc.com/news/uk-england-london-43027472
1/31 and 1/27- Hong Kong
https://sports.yahoo.com/second-hong-kong-ww2-bomb-week-sparks-evacuation-150349787.html