As a history buff, this is the kind of thing I find interesting – beneath the Sea of Galilee in Israel, a massive, mysterious stone structure has been found, and no one is exactly sure as to its purpose.
It is also big – 70 metres across and 10 metres high. It was first spotted by sonar scan in 2003, and even a dive on the site hasn’t really worked out much about it, who made it, its age or purpose.
The full write up is available in the International Journal of Nautical Archaeology.
As a writer, I like scattering such unknowns around my worlds, random monuments to past ages and cultures that remain mysterious and unexplained.
Mist and Shadows 