Country with the maximum lakes in the world
Over 60% of the world's lakes are in Canada.
Longest river
The River Nile, Egypt.
Greatest river
The Rive Amazon, South America.
Longest big ship canal
The Suez Canal, Egypt (195 km. long).
Longest irrigation canal
The Karakumsky Canal, in Turkmenistan 1200 km. long.
Country with the shortest coastline
Manaco (5.61 km.).
Country with the longest coastline
Canada (243,798 km).
Largest voluminous dam
New Cornelia Tailings Dam, on the Ten Mile Wash, Arizona, USA.
Largest concrete dam
The Grand Coulee Dam on the Columbia River, Washington State, USA.
Longest dam
The Yacyrcta Apipe Dam across the Parana River on Paraguay-Argentina border (length 69.6 km.).
Longest tunnel
The New City West Delaware water supply tunnel, (169 km, long and diameter 4.1 m.).
Longest under-sea tunnel
Seikan Rail tunnel, Japan (length of 53.85 km.).
Longest railway tunnel
The under –sea Seikan Rail tunnel, Japan, with a length of 53.85 km.
Longest road tunnel
The St. Gothard Road Tunnel in Switzerland (16.32 km.).
Largest road tunnel
Yerba Buena Island tunnel, San Francisco, California, USA. It is 77 feet 10 inches wide, 56 feet high and 540 feet long.
Longest underground vehicular tunnel
The Moscow metro Kaluzhskaya underground railway line of 37.9 km. from medvedkoyo to Bittsevsky, Russia.
Longest bridge
Second Lake Pontchartrain Causeway, Louisina, USA, (38.42 km. long).
The Seto-Ohasi double-deck road and Rail Bridge, linking Kajima, Honshu, with Sakaide, Shikoku in Japan (length 12.3 km.).
Highest bridge
The bridge over the Royal Gorge of the Arkansas River in Colorado, USA, (321 m above water-level)
Country with the greatest length of railway tract
The USA, with 223, 155 km, of track.
Biggest square
The Tiananmen (Gate of Heavenly Peace) Square in Beijing, China. It extends over 98 acres.
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