That would be Columbus, Ohio.
Columbus, Ohio.
Columbus is the capital of Ohio and the state's largest city. It is located in Delaware, Franklin, and Fairfield Counties, and the coordinates are 39 degrees 59' N, 82 degrees 59' W.
The capital of Mexico
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41 degrees latitude and 83 degrees longitude
Not sure if any major city is exactly the same latitude as Frankfurt (50 degrees 6 minutes North), but Prague is very close at 50 degrees 5 minutes North. (These are approximate numbers as various sources provide differing numbers)
40 degrees north and 113 degrees west.
Accra, Ghana
Wellington, capital of New Zealand is south of the 40 degree line of latitude. Wellington's latitude is 41 degrees, longitude 174.
That point is on the block between E 15th Ave and E 16th Ave, and between N 4th St and Summit St, about 2.7 miles north of the Ohio Statehouse, in Columbus. There is no other capital city nearer to those coordinates than Columbus is.
Tripoli, capital city of Libya.