Système à trois roses

The Birsig is a rather small river in eastern France and northern Switzerland. Its source is in the village Biederthal, in the French Haut-Rhin department, near the Swiss border. The Birsig is about 21 kilometres (13 mi) long, and its watershed area is about 82 square kilometres (32 sq mi). It flows variably through Swiss and French territory and through the Birsig Valley.

The University Hospital of Basel (German: Universitätsspital Basel, USB), in Basel, is one of the five university hospitals of Switzerland. Since 1842 it is located in a former palace, the Markgräflerhof.USB brings together 50 clinics, units and institutes all working together in an interdisciplinary manner and employs a staff of about 5000.

The Biozentrum of the University of Basel specializes in basic molecular and biomedical research and teaching. Research includes the areas of cell growth and development, infection biology, neurobiology, structural biology and biophysics, and computational and systems biology. With more than 550 employees, the Biozentrum is the largest department at the University of Basel's Faculty of Science.

The Middle Bridge (German: Mittlere Brücke [common name] / German: Mittlere Rheinbrücke [official name], French: Pont du Milieu) is a historic bridge in the Swiss city of Basel. It is situated on the oldest existing bridge site across the Rhine, between Lake Constance and the North Sea.

"The University Children’s Hospital Basel (UKBB) is an independent, university-based centre of competence for paediatric and juvenile medicine, as well as for teaching and research."The UKBB exists since 1999. On January 29, 2011, after several years of planning and constructing, the UKBB started operations in its new location at Spitalstrasse 33 in Basel.

The Markgräflerhof is a baroque palace in Basel, Switzerland, built by the margraves of Baden-Durlach, who used it as an extraterritorial residence as their principality including its residences was often the victim of wars and armies. The margraves had several residences in Basel, but the construction of current palace started under margrave Frederick VII in 1698 when a fire destroyed the previous building.

The Basel city walls are a complex of walls surrounding the central part of the Swiss city of Basel, only partially preserved today. The first city wall was completed around 1080 under bishop Burkhard von Fenis. A newer wall was constructed around 1230, which is known as the Inner Wall. Its course was mostly identical to the Burkhard wall.