The Po is Italy's longest river, flowing 652-682 km from Cottian Alps. River reaches 503 m width at its widest point. Drains 74,000 km² area, with 450 standing lakes along its path. Forms delta projecting into Adriatic Sea near Venice
Second-longest river in Africa, shorter than Nile. World's deepest recorded river, reaching depths over 220m. Total length with Lualaba is 4,370km. Drainage basin covers 4,014,500km², 13% of African landmass
Spain occupies 82% of Iberian Peninsula, totaling 505,370 km². Borders Mediterranean Sea to south and east, Atlantic Ocean to west. Includes Llívia, Balearic Islands, Canary Islands, and five African enclaves
Australia's longest river at 2,508 km, forming Murray-Darling basin. Originates in Australian Alps, flows northwest across inland plains. Forms border between New South Wales and Victoria. Empties into Great Australian Bight through Murray Mouth
Russia is divided into European and Asian parts by Ural Mountains. European rivers drain into Arctic, Baltic, Black, and Caspian Seas. Asian rivers drain into Arctic and Pacific Oceans
The Mississippi River flows 2,340 miles from Lake Itasca to the Gulf of Mexico. It is the world's fourth-largest river by discharge flow. The river's watershed covers 1,151,000 square miles across 32 states