Ancient lighthouses - Pharos of Alexandria and Colossus of Rhodes

The Lighthouse of Alexandria, sometimes called the Pharos of Alexandria,was a lighthouse built by the Ptolemaic Kingdom of Ancient Egypt, during the reign of Ptolemy II Philadelphus (280-247 BC).
It has been estimated to have been at least 100 metres (330 ft) in overall height. One of the Seven Wonders of the Ancient World, for many centuries it was one of the tallest man-made structures in the world.
The lighthouse was severely damaged by three earthquakes between 956 and 1303 AD and became an abandoned ruin..

The Colossus of Rhodes was a statue of the Greek sun god Helios, erected in the city of Rhodes, on the Greek island of the same name, by Chares of Lindos in 280 BC.
One of the Seven Wonders of the Ancient World, it was constructed to celebrate the successful defence of Rhodes against an attack by Demetrius I of Macedon, who had besieged it for a year with a large army and navy. According to most contemporary descriptions, the Colossus stood approximately 33 metres (108 feet) high