Columbus, Ohio is 2.5 times larger than Durham, North Carolina.
Area: 694 km2 calculated
Columbus is the capital of and the largest city in the U.S. state of Ohio. It is the 15th largest city in the United States with a population of 822,553. It is the core city of the Columbus, OH Metropolitan Statistical Area, which encompasses a ten county area. Wikipedia
Area: 276 km2 calculated
Durham is a city in the U.S. state of North Carolina. It is the county seat of Durham County, though portions also extend into Wake County in the east and Orange County in the west. Wikipedia