> According to a local office worker, this wasn’t unusual; numerous unexploded bombs had been found on-site in the years prior, prompting evacuations in 2004.

Yep, this is still a regular (and mostly mundane) occurrence in Germany.

Kinda crazy if you think about it. In my home town of Cologne, if you dig anywhere you either find roman ruins or WW2 bombs. ~30 bombs last year. I've been evacuated so many times.