The Aller is a 215-kilometre-long (134 mi) river in the states of Saxony-Anhalt and Lower Saxony in Germany. It is a right-hand, and hence eastern, tributary of the Weser and is also its largest tributary. Its last 117 kilometres (73 mi) form the Lower Aller federal waterway. The Aller was extensively straightened, widened and, in places, dyked, during the 1960s to provide flood control of the river. In a 20-kilometre-long (12 mi) section near Gifhorn, the river meanders in its natural river bed.
The canalised and poplar-lined Aller in the Drömling near Wolfsburg-Vorsfelde
The Aller near Wefensleben, about 10 kilometres (6 mi) below its source
The Aller near Oebisfelde
Bridge on the Upper Aller in Wolfsburg-Vorsfelde
Lower Saxony is a German state in northwestern Germany. It is the second-largest state by land area, with 47,614 km2 (18,384 sq mi), and fourth-largest in population among the 16 Länder federated as the Federal Republic of Germany. In rural areas, Northern Low Saxon and Saterland Frisian are still spoken, albeit in declining numbers.
Wangerooge
Hanover - capital and largest city of Lower Saxony
City center of Braunschweig
City center of Hildesheim with St. Andrew's, the tallest church in Lower Saxony, and Hildesheim Cathedral, a UNESCO World Heritage Site