* Longest river in the world - Nile.
* Longest highway in the world - Trans-Canada(about 8000km).
* Highest mountain in the world - Everest.
* Highest waterfall in the world - Salto Angel Falls, Venezuela.
* Biggest desert in the world - Sahara.
* Biggest delta in the world - Ganges delta.
* Biggest island of the world - Greenland.
* Biggest stadium in the world - Strahov Stadium, Prague.
* Largest ocean of the world - Pacific ocean.
* Largest bell in the world - Tsar Kolkol at Kremlin, Moscow.
* Largest library in the world - United States Library of Congress, Washington DC.
* Largest museum in the world - American Museum of Natural History.
* Largest airport in the world - King Khalid International Airport, Saudi Arabia.
* Largest bay in the world - Hudson Bay, Canada.
* Largest church in the world - Basilica of St. Peter, Vatican City, Rome.
* Largest peninsula in the world - Arabia.
* Largest gulf in the world - Gulf of mexico.
* Largest railway tunnel in the world - Oshimizu Tunnel, Japan..
* Largest cinema in the world - Fox theatre, Detroit, USA.
* Largest temple in the world - Angkor Wat in Kampuchea.
* Largest dome in the world - Louisiana Superdome, New Orleans, USA.
* Largest strait in the world - Tartar strait.
* World's oldest known city - Damascus.
* World's loneliest island - Tristan da cunha.
* World's tallest office building - Sears Tower, Chicago.
* Lowest mountain range in the world - Buena Bhaile.
* Tallest tower in the world - C. N. Tower, Toronto, Canada.
* Tallest statue in the world - Motherland, Volgograd Russia.
* Coldest place on the earth - Verkoyansk in Siberia
(recorded -70 degrees C in winter and +37 degrees C in summer).