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  2. City block - Wikipedia

    en.wikipedia.org/wiki/City_block

    In Chicago, a typical city block is 330 by 660 feet (100 m × 200 m), [2] meaning that 16 east-west blocks or 8 north-south blocks measure one mile, which has been adopted by other US cities. In much of the United States and Canada, the addresses follow a block and lot number system , in which each block of a street is allotted 100 building ...

  3. Washington Monument - Wikipedia

    en.wikipedia.org/wiki/Washington_Monument

    The cornerstone was a 24,500-pound (11,100 kg) marble block 2.5 feet (0.76 m) high and 6.5 feet (2.0 m) square with a large hole for a zinc case filled with memorabilia. The hole was covered by a copper plate inscribed with the date of the Declaration of Independence (July 4, 1776), the date the cornerstone was laid (July 4, 1848), and the ...

  4. Square mile - Wikipedia

    en.wikipedia.org/wiki/Square_mile

    Square miles should not be confused with miles square, a square region with each side having a length of the value given. For example, a region which is 20 miles square (20 mi × 20 mi) has an area of 400 sq mi; a rectangle of measuring 10 mi × 40 mi also has an area of 400 sq mi, but is not 20 miles square.

  5. Acre - Wikipedia

    en.wikipedia.org/wiki/Acre

    The entire yellow square is one square mile; the dark blue area at right represents 100 acres. The acre (/ ˈeɪkər / AY-kər) is a unit of land area used in the British imperial and the United States customary systems. It is traditionally defined as the area of one chain by one furlong (66 by 660 feet), which is exactly equal to 10 square ...

  6. Texas land survey system - Wikipedia

    en.wikipedia.org/wiki/Texas_land_survey_system

    Land grants from the state of Texas to railroad companies were often patented in blocks and sections, and occasionally in units of square miles, officially considered sections. The Texas Land Survey System is often measured in Spanish Customary Units. The most important of these is the vara, which, while ambiguous in the past, was legally ...

  7. Olympic-size swimming pool - Wikipedia

    en.wikipedia.org/wiki/Olympic-size_swimming_pool

    The length of 50 metres (164 ft) must be between the touch pads at the end of each lane, if they are used. [3] If starting blocks are used, then there must be a minimum depth of 1.35 metres (4.4 ft) from between 1 metre (3 ft 3 in) from the end of the pool to at least 6 metres (19 ft 8 in) from the end of the pool.

  8. Mile - Wikipedia

    en.wikipedia.org/wiki/Mile

    The mile, sometimes the international mile or statute mile to distinguish it from other miles, is a British imperial unit and United States customary unit of length; both are based on the older English unit of length equal to 5,280 English feet, or 1,760 yards. The statute mile was standardised between the Commonwealth of Nations and the United ...

  9. The Brooklyn Tower - Wikipedia

    en.wikipedia.org/wiki/The_Brooklyn_Tower

    The Brooklyn Tower is situated at 9 DeKalb Avenue and 340 Flatbush Avenue Extension in the Downtown Brooklyn neighborhood of New York City. [2] [3] [4] The building's site occupies much of the triangular city block bounded by Fleet Street to the northwest, DeKalb Avenue to the south, and Flatbush Avenue Extension to the northeast.