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Allentown, Pennsylvania - Wikipedia
City of Allentown - PA - Official Site
Things to Do in Allentown, PA | Farmers Markets & Museums
THE 15 BEST Things to Do in Allentown - Tripadvisor
Attractions in Allentown, PA | Culture, Events & Entertainment
Allentown | visitPA
20 Fun Things to do in Allentown, PA - Uncovering PA
15 Top-Rated Things to Do in Allentown, PA | PlanetWare
Allentown – Travel guide at Wikivoyage
Allentown | City in Pennsylvania, Manufacturing | Britannica