Two weather satellite images, composite and infrared.
Serbia, Croatia, Bulgaria, Macedonia, Albania, Romania, Hungary, Bosnia, Italy, Slovenia, Austria and Greece are also covered with this image layer.
The assassination of Archduke Franz Ferdinand of Austria on 28 June 1914 in Bosnia-Herzegovina - then part of the Austro-Hungarian Empire - brought the tensions between Austria-Hungary and Serbia to a head. This triggered a chain of international events that embroiled Russia and the major European powers. Thirty-seven days later the world was at war.
Bosnian explorer Semir Osmanagic is convinced he has found Europe's first pyramids which he says are a new world wonder dating back to ancient times.
The two pyramids are hidden in Visoko valley, Bosnia.
The explorer believes that builders from an unknown civilisation shaped the hill into a 'step pyramid' then coated it with a kind of primitive concrete.
The structure now...