My first reaction would be Prypiat, but if the blast destroys the sarcophagus around the ruined reactor (or damages any of the remaining reactors), there's a chance the fallout would lead to the destruction of large parts of Europe, and my family dying anyway. So I'd save time, people and my mind, and choose a bullet. While smirking, just to see their expressions.
Alternatively, I once read there's a town somewhere in the US where there's a 500 dollar fine for detonating an atomic bomb inside the city limits...