Pharos Lighthouse

The Lighthouse of Alexandria, more commonly known as the Pharos Lighthouse, stood on an island in the harbour of Alexandria, Egypt. Just like the Library of Alexandria, it was one of the Seven Wonders of the World. (PROSE: The Book of Shadows, The Ruby's Curse)

History
The Pharos Lighthouse was built in the 3rd century BCE. (PROSE: The Ruby's Curse) According to the Fourth Doctor, slaves were employed to keep its bonfires going. (TV: Horror of Fang Rock)

Like the other six Wonders, it was stolen by Pholonius Ginn, who intended on selling it to the highest bidder on G-Bay. It later returned by Trongus Squum, at the Tenth Doctor's request. (COMIC: Minus Seven Wonders)

The lighthouse was eventually destroyed by earthquakes. (PROSE: The Ruby's Curse)