Visiters and journalists walk inside the New Safe Confinement (NSC) new metal dome designed and built by French consortium Novarka encasing the destroyed reactor at Chernobyl plant on July 10, 2019, in Chernobyl. - Ukraine and its European partners on July 10 formally inaugurated a new metal dome encasing the destroyed reactor at the infamous Chernobyl plant, wrapping up a two-decade effort. Branded as the world's largest moveable metal structure, the so-called New Safe Confinement seals the remains of the fourth reactor at the nuclear plant that was the site of the massive Chernobyl disaster in 1986. (Photo by SERGEI SUPINSKY / AFP)