Largest Creations of Man

Lake Volta
Image source : commons.wikimedia

Three Gorges Dam
Image source : en.academic.ru

Masjid al-Haram, Mecca

1. Building (by largest usable space) - Boeing Everett Factory,Washington
2. Building (by largest footprint) - Boeing Everett Factory, Washington
3. Building (by largest floor space) - New Century Global Centre, China
4. National Park - Northeast Greenland National Park 
5. Stadium - Strahov Stadium, Prague, Czech Republic
6. Airport (by area) - King Fahd International Airport, Saudi Arabia
7. Botanical Garden - Royal Botanic Gardens, Kew, England
8. Railway Station (in terms of no. of platforms) - Grand Central Terminal, Park Avenue and 42nd Street, New York City, USA
9. Railway Station (in terms of floor area) -  Nagoya Station in Nagoya, Japan
10. Dam - Syncrude Tailings Dam Mildred MLSB, Canada
11. Hydroelectric power stations - Three Gorges Dam, China
12. Artificial Lake - Lake Volta, Ghana
13. Cemetery - Wadi-us-Salaam, Iraq
14. Civilian Building - Palace of the Parliament, Romania
15. Church - St. Peter's Basilica, Vatican City
16. Mosque - Masjid al-Haram, Mecca
17. Hindu Temple - Angkor Wat, Cambodia
18. Shopping Mall - New South China Mall, Dongguan, China
19. Medical Center - Texas Medical Center
20. Fort - Ranikot Fort, Sindh

    

    New Century Global Centre, China
    Image Source : The Sydney Morning Herald

    
    

    

    Angkor Wat
    Image source : britannica.com