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