Diving into a sea of amphorae off Alonissos. Credit: Greek Ministry of CultureThe ancient shipwreck of Peristera, off the Greek island of Alonissos, dubbed “the Parthenon of shipwrecks”, opens on Tuesday to divers who will be able to visit the famous shipwreck of amphorae from the 5th century BC.Accompanied by instructors, divers will get a…