Vienna is the capital, most populous city, and one of nine federal states of Austria. It is Austria's primate city, with just over two million inhabitants. Its larger metropolitan area has a population of nearly 2.9 million, representing nearly one-third of the country's population. Vienna is the cultural, economic, and political center of the country, the fifth-largest city by population in the European Union, and the most-populous of the cities on the Danube river.
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 Lech is a river in Austria and Germany. It is a right tributary of the Danube 255 kilometres (158 mi) in length with a drainage basin of 3,919 square kilometres (1,513 sq mi). Its average discharge at the mouth is 115 m3/s (4,100 cu ft/s). Its source is located in the Austrian state of Vorarlberg, where the river rises from lake Formarinsee in the Alps at an altitude of 1,870 metres (6,120 ft). It flows in a north-north-easterly direction and crosses the German border, forming the Lechfall, a 12-metre-high (39 ft) waterfall; afterwards the river enters a narrow gorge. Leaving the Alps, it enters the plains of the Allgäu at Füssen at an elevation of 790 metres (2,580 ft) in the German state of Bavaria, where it used to be the location of the boundary with Swabia. The river runs through the city of Füssen and through the Forggensee, a man-made lake which is drained in winter. Here, it forms rapids and a waterfall.
The Iller is a river of Bavaria and Baden-Württemberg in Germany. It is a right tributary of the Danube, 146 kilometres (91 mi) long.
The Timiș or Tamiš is a 359-kilometre-long (223 mi) river that flows through the Banat region of Romania and Serbia and joins the Danube near Pančevo, in northern Serbia. Due to its position in the region, it has been labeled as the "spine of the Banat".
The Enns is a southern tributary of the river Danube in Austria, joining northward at the city of Enns. It forms much of the border between the states of Lower Austria and Upper Austria. The Enns spans 253 kilometres (157 mi), in a flat-J-shape. It flows from its source near the village Flachau, generally eastward through Radstadt, Schladming, and Liezen, then turns north near Hieflau, to flow past Weyer and Ternberg through Steyr, and further north to the Danube at Enns.
The Sió or Sió-csatorna (Sió-Channel) is a fully regulated river in midwest Hungary. It is the outlet, at the eastern end, of Lake Balaton, flowing out of the lake in Siófok. The 124 km (77 mi) long Sió flows into the river Danube near the city of Szekszárd. The Sió flows through the Hungarian counties Somogy, Fejér and Tolna, its main tributaries are Kapos from the right and Sárvíz from the left. The drainage basin of the Sió covers more than a third of the Transdanubia region. The Sió's basin size is 14,693 km2 (5,673 sq mi) and its average discharge at the mouth is 39 m3/s (1,400 cu ft/s).
The Vienna U-Bahn, where U-Bahn is an abbreviation of the German word Untergrundbahn, is a rapid transit system serving Vienna, Austria. The five-line network consists of 83.1 kilometers (51.6 mi) of route, serving 109 stations. 459.8 million passengers rode the U-Bahn in 2019.
The Durance is a major river in Southeastern France. A left tributary of the Rhône, it is 323.2 km (200.8 mi) long. Its drainage basin is 14,472 km2 (5,588 sq mi).
Traun is a river in the Austrian state of Upper Austria. Its source is in the Totes Gebirge mountain range in Styria. It flows through the Salzkammergut area and the lakes Hallstätter See and Traunsee. The Traun is a right tributary of the Danube, which it meets near the city of Linz. Other towns along the river are Bad Aussee, Bad Ischl, Gmunden, Wels and Traun. The Traun is 155.9 km (96.9 mi) long, and has a basin area of 4,257 km2 (1,644 sq mi). Its average discharge at the mouth is 150 m3/s (5,300 cu ft/s).
The Emscher is a river, a tributary of the Rhine, that flows through the Ruhr area in North Rhine-Westphalia in western Germany. Its overall length is 83 kilometres (52 mi) with an mean outflow near the mouth into the lower Rhine of 16 m3/s (570 cu ft/s).
The Sulm is a river in the Heilbronn district of Baden-Württemberg, Germany. It is an unnavigable right tributary of the Neckar. It rises in the Löwenstein Mountains and after 26.3 kilometres (16.3 mi) distance and 315 metres (1,033 ft) elevation drop flows into the Neckar at Bad Friedrichshall, near Untereisesheim and Neckarsulm. Its valley together with its tributary valleys is also known as the Weinsberg Valley, after Weinsberg, which is located there. The medieval region of Sulmgau, as well as the city of Neckarsulm, were named for it. The upper valley of the Sulm is a protected area.
The Wienzeile is a street in Vienna, which originated in the course of the regulation of the Vienna River between 1899 and 1905 along the river's banks. It is divided into the Rechte Wienzeile and the Linke Wienzeile.
The Vienna Danube regulation refers to extensive flood-control engineering along the Danube river in Vienna, Austria during the last 150 years. The first major dams or levees were built during 1870-75. Another major project was constructed during 1972-88, which created the New Danube and Danube Island (Donauinsel). Prior to regulation, the Danube in Vienna had been an 8-kilometre (5 mi) wide wetlands, as a patchwork of numerous streams meandering through the area.
For a long time, it was not necessary to build a Harbour in Vienna, because the existing natural landing points were sufficient for the level of trade on the Danube. It was only when steamships began to arrive in great numbers that a harbour offering safe berths became essential. Even then however, goods were for the most part loaded and unloaded at an unenclosed river harbour that was established at the end of the 19th century.
The hydrology of Hungary, is mostly determined by Hungary's lying in the middle of the Carpathian Basin, half surrounded by the Carpathian Mountains. All parts of the country have some outflow. All surface water gravitates towards its southern center, and from there, is united in the Danube, which flows into the Black Sea. The whole of Hungary lies within the Danube drainage basin.
The Schwarza is a river in Lower Austria. It is the left headstream of the Leitha.
Pilgramgasse is a station on the Vienna U-Bahn line U4. It is located in Margareten between Ramperstorffergasse and the eponymous street, which is named after Franz Anton Pilgram (1699–1761), an Austrian Baroque architect. The station is in an open cut parallel to the River Wien and curves to match the curve of the river.
Kosasthalaiyar River, also known as Kortalaiyar, is one of the three rivers that flow in the Chennai metropolitan area.
The Gießenbach is a river of Austria. Its drainage basin is 64 km2 (25 sq mi).
