List of longest and largest river, mountain, lake, peak, animals and etc.

Largest IslandGreenland
Largest River islandMajuli
Longest WallWall of China
Longest RiverNile (6,650 Km)
Highest PeakMount Everest
Second Highest PeakK2 / Godwin Austin
Third Highest PeakKanchanjangha
Largest lakeCaspian Sea
Largest sweat water lakeLake Superior
Largest continentAsia
Largest ArchipelagoIndonesia
Largest Coral fermationBahrin
Largest DeltasGanga Brahamputra Delta
Largest DesertSahara
Largest GulfGulf of Mexico
Highest Mountain rangeThe Himalayas
Longest Mountain rangeAndes (7,000 km, South America)
Longest RailwayTrans-Siberian Railway (9,289 km)
Largest VolcanoMauna Loa (Hawaii Big Island)
Deepest LakeBaikal (1,642 mtr / 5,387 ft, Russia-Mongolia)
Highest LakeLake Titika
Tallest AnimalGiraffe
Fastest AnimalCheatah (Updated-Peregrine Falcon bird)