

The British Museum is renowned for its collection of artifacts from around the world. Some of it was acquired by British archaeologists from countries which were not yet exercising any control over their antiquities. Some countries want their stuff back. It is a difficult decision. So often there is news of looting of important archaeological sites.
The display of artifacts from the Pantheon from Athens's Acropolis was very impressive and informative. The Pantheon was destroyed when munitions -- which the Turkish army stored in the building -- blew up. The stupidity of it all is staggering.