"We visited together everything to be visited in Alexandria"

The lighthouse (or Pharos) of Alexandria was, at the time, one of the tallest man-made structures on Earth, and was one of the seven "wonders of the world." Built between 280 and 247 BC, it stood into the Middle Ages, being badly damaged by earthquakes between 956 and 1323 AD. Recent work by the French archaeologist, Jean-Yves L'Empereur, has revealed remnants of the lighthouse beneath the harbour (http://www.pbs.org/wgbh/nova/sunken).

 

Roman coins, depicting the Pharos of Alexandria.
GNU Free Documentation LicenseRoman coins, depicting the Pharos of Alexandria. - Credit: Ginolerhino
Pharos of Abusir, a funerary monument believed to have been styled on the Pharos of Alexandria
GNU Free Documentation LicensePharos of Abusir, a funerary monument believed to have been styled on the Pharos of Alexandria - Credit: Gene Poole

The Mausoleum of Alexander the Great, though certainly still visible in Hadrian's time, is now lost, as is the Mausoleum of Antony and Cleopatra (archaeologists Zahi Hawass and Kathleen Martinez were investigating a site at Taposiris Magna which they thought might be the location of the mausoleum, but these investigations have been discontinued, at least for the moment, as a result of the recent political upheavals in Egypt).