The following clean-up operation involved more than half a million personnel at a cost of $68 billion, and a further 4,000 people were estimated to have died from disaster-related illnesses in the following 20 years. Some 350,000 people were evacuated as a result of the accident (including 95 villages in Belarus), and much of the area returned to the wild, with the nearby city of Pripyat now a ghost town. Chernobyl provides a photographic exploration of the catastrophe and its aftermath in 180 authentic photos. See the twisted wreckage of No. 4 Reactor, the cause of the nuclear disaster; marvel at historic photos of the clean-up operation, with helicopters spraying decontamination liquid and liquidators manually clearing radioactive debris; see the huge cooling pond used to cool the reactors, and which today is home to abundant wildlife, despite the radiation; explore the ghost town of Pripyat, with its decaying apartment blocks, empty basketball courts, abandoned amusement park, wrecked schools, and deserted streets.