Ответ:

Chernobyl is the first place that comes to mind. I think a serious nuclear accident happened there, so the city was evacuated and became almost deserted. The monument is dedicated to the firefighters and other emergency workers who risked their lives to stop the disaster and protect people.

Another well-known Soviet ghost town is Pripyat, which was evacuated after the Chernobyl nuclear accident.

Ответ: Chernobyl was evacuated after the nuclear disaster. The monument commemorates the firefighters and emergency workers.