Anchorage, Alaska is 29 times larger than Pittsburgh.
Area: 4,476 km2 calculated
Anchorage is a unified home rule municipality in the southcentral part of the U.S. state of Alaska. It is the northernmost city in the United States with more than 100,000 residents and the largest community in North America north of the 60th parallel. Wikipedia
Area: 153 km2 calculated
Pittsburgh is the seat of Allegheny County and with a population of 305,841 is the second-largest city in the U.S. state of Pennsylvania. With a metropolitan CSA population of 2,659,937, it is the largest in both the Ohio Valley and Appalachia and the 20th-largest in the U.S. Wikipedia