[Answer] Which of these structures took the longest to build?

Step 1 : Introduction to the question "Which of these structures took the longest to build?"

...1. Parthenon 2. White House 3. York Minster Cathedral 4. Roman Colosseum

Step 2 : Answer to the question "Which of these structures took the longest to build?"

York Minster Cathedral - Believe it or not, this medieval cathedral in York, England, took longer to build than the White House (eight years, from 1792 to 1800), the Colosseum (eight to 10 years, from 70–72 AD to 80 AD), and the Parthenon (eight or nine years, from 447 BC to 432 BC), combined — and then some. In fact, it took about 10 times as long as these three structures combined. York Minster Cathedral was built over a 252-year period, beginning in 1220 and ending in 1472, and was one of the largest cathedrals of the Middle Ages. With three towers and a 520-foot-long stained glass window, that extended build time seems pretty understandable.:

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