Gorges de l'Areuse, Switzerland The Val de Travers is a Jura mountain valley perpendicular to the main valleys (hence the name). The river Areuse has cut itself steeply through the soft limestone and clay sediments. It's one of those Roman bridges too.
A cathedral made from LED lights (consuming only 20 Kwatt/h of electricity) by Luminarie De Cagna, an Italian family business. This "cathedral" is on Belfort Street at the 2012 Ghent Light Festival. The entrance is 28 meters high.