Istanbul Fact Sheet
Database: Historical Largest Cities of the World
| Record Name | City | Country | Year Become #1 | Population | Note | Source |
| Constantinople (340 CE) | Constantinople (Istanbul) | Turkey | 500 | 400,000 | Answers.com Four Thousand Years of Urban Growth: An Historical Census by Tertius Chandler. 1987, St. David's University Press | |
| Constantinople (Istanbul) (1127) | Constantinople (Istanbul) | Turkey | 1127 | No Data | Answers.com Four Thousand Years of Urban Growth: An Historical Census by Tertius Chandler. 1987, St. David's University Press | |
| Constantinople (Istanbul) (1153) | Constantinople (Istanbul) | Turkey | 1153 | No Data | Answers.com Four Thousand Years of Urban Growth: An Historical Census by Tertius Chandler. 1987, St. David's University Press | |
| Constantinople (Istanbul) (1650) | Constantinople (Istanbul) | Turkey | 1650 | 700,000 | Answers.com Four Thousand Years of Urban Growth: An Historical Census by Tertius Chandler. 1987, St. David's University Press |
Database: Average Real Estate Rental Cost for Selected Cities
| Record Name | City | Country | Region | Total Cost (US$ per sq. m) | Rent (Total Cost (US$ per sq. m)) | Other Expenses (US$ per sq. m) | Source |
| Average Real Estate Rental Cost for Istanbul | Istanbul | Turkey | Asia | 264 | 216 | 48 | Cushman & Wakefield |
Database: World's Tallest Buildings
| Record Name | City | Country | Height in Meters | Height in Feet |
| Akbank Tower | Istanbul | Turkey | 158 | 518 |
Database: World's Largest Shopping Malls
| Record Name | Year Opened | City | Country | Region | State | Leasable Area (Square Feet) | Total Area (Square Feet) | Stores |
| Cevahir Istanbul | 2005 | Istanbul | Turkey | Europe | 3.8 million | 4.5 million | 280 |
Database: List of longest suspension bridge spans
| Record Name | Year Constructed | Country | Bridge | Location | Length (Meters) | Length (Feet) | Note | Source |
| Fatih Sultan Mehmet (Second Bosporus Bridge) | 1988 | Turkey | Fatih Sultan Mehmet (Second Bosporus Bridge) | Istanbul, Turkey | 1,090 | 3,576 | Wikipedia | |
| Boğaziçi (First Bosporus Bridge) | 1973 | Turkey | Boğaziçi (First Bosporus Bridge) | Istanbul, Turkey | 1,074 | 3,524 | Wikipedia |
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