Greece's prime minister cut a U.K. visit short after an apparent snub by his U.K. counterpart over the Elgin Marbles — sculptures taken from the Parthenon, now housed at the British Museum.

In March, three 2,500-year-old pieces of the Parthenon that had been in the Vatican’s collections were returned to the Acropolis Museum in Athens.

I’ve been thinking about the Parthenon marbles too much lately, having imaginary arguments in my head with museum curators and conservative Britons about how overdue their repatriation to Greece is.