The former borderline between West Germany and the German Democratic Repuplic.
The "Trail of German Entity" connects the most eastern German city (Goerlitz) with the most western one (Aachen).
It is a 1080 km long trail that you can walk, binded by Rennsteig/Rothaarsteig/Kammweg and others.
You cross the former GDR border a couple of times and pass the most interesting landscapes of Germany.
The tour also shows German assets aside of the trail, most trekkers do not access these due to the distance.
But most of them are within 20-50km awy of the original trail.
All images were taken in 2015, 25 years after the German reunification- a very remakable timestamp though.
The project not only is a geographical profile of Germany, but also a historical and social one.
There will be a DVD with the interactive tour and a booklet app. end 2015/beginning of 2016.
More information on the project website.
Wikipedia: Franconia (German: Franken) is a region of Germany comprising the northern parts of the modern state of Bavaria, a small part of southern Thuringia, and a region in northeastern Baden-Württemberg called Heilbronn-Franken. The Bavarian part is made up of the administrative regions of Lower Franconia (Unterfranken), Middle Franconia (Mittelfranken), and Upper Franconia (Oberfranken).Franconia (like France) is named after the Germanic tribe of the Franks. This tribe played a major role after the breakdown of the Roman Empire and colonised large parts of medieval Europe.Modern day Franconia comprises only a very tiny and rather remote part of the settlement area of the ancient Franks. In German, Franken is used for both modern day Franconians and the historic Franks, which leads to some confusion. The historic Frankish Empire, Francia, is actually the common precursor of the Low Countries, France and Germany. In 843 the Treaty of Verdun led to the partition of Francia into West Francia (modern day France), Middle Francia (from the Low Countries along the Rhine valley to northern Italy) and East Francia (modern day Germany). Frankreich, the German word for "France", and Frankrijk, the Dutch word for "France"; literally mean "the Frankish Empire".