In the mountainous region of Algeria is the city of Constantine. When it was founded 2,000 years ago, a plateau surrounded by deep ravines was a great place to build, because the city could be easily defended. Since then, Constantine has outgrown the plateau and spilled over into the adjoining areas. They are connected to the old city by four high bridges. Buildings cling to the very edge of the cliffs, and you have to imagine the bravery of the builders who put them there over the years, as well as the people who live and work there now. Constantine’s other claim to fame is that the microbe that causes malaria was first discovered there. See lots of gorgeous pictures of Constantine at Kuriositas.-via the Presurfer
(Image credit: Flickr user Philippe HENCK)