This monumental mausoleum – a dramatic 45m wide and 90m high – was built in 28 BC and is the final resting place of Augustus, buried here in AD 14, and his favorite nephew and heir Marcellus. Mussolini had it restored in 1936 with an eye to being buried here himself, but it has since fallen into disrepair. It is still undergoing major restoration, with phases of construction followed by periods of opening to the public. Before planning your visit, check to see if it has reopened.