Smallest In the World

1. Smallest Bird: Humming bird
2. Smallest Continent: Australia
3. Smallest Country (Area): Vatican City
4. Smallest Planet: Mercury

Biggest In the World

1. Biggest Delta: Sunderban (India)
2. Biggest Cinema House: Roxy, New York
3. Biggest Natural History Museum: American Museum of Natural History (New York).
4. Biggest Oceans: Pacific Ocean
5. Biggest Palace: Vatican (Rome)
6. Biggest Planet: Jupiter
7. Biggest Telescope: Hale Telescope at Mt. Palomar (USA)
8. Biggest Flower: Rafflesia (Java)
9. Biggest Airbus: Double Decker A-380

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Highest In the World

1. Highest Airport: Daocheng Yading Airport, China
2. Highest City: La Paz, Bolivia
3. Highest Lake: Titicaca (Bolivia)
4. Highest Mountain Peak: Mount Everest (Nepal)
5. Highest Mountain Range: Himalayas, Asia.
6. Highest Plateau: The Qinghai-Tibetan plateau
7. Highest Waterfall: Angel Falls (Venezuela)
8. Highest Road: Umling La Pass, Ladakh division India.
9. Highest Village: Chilam, Gilgit Baltistan
10. Highest Volcano: Ojos del Salado, Argentina-Chile border.
11. Highest Rail Track: Qinghai-Tibet Railway (China)