The Tower of Hercules is the oldest Roman lighthouse in the world. It is an amazing 1900 years old and still in operation. It is located in the northern Spainish town of A Coruña.
A Coruña itself was built when Hercules slew the giant tyrant Geryon after three days and three nights of continuous battle. Hercules then—in a Celtic gesture— buried the head of Geryon with his weapons and ordered that a city be built on the site. Hence the lighthouse's name, The Tower of Hercules. Well, at least that's what they say.
View a video of The Tower of Hercules on Google Maps