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Callao - Wikipedia
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Callao: Lima's Port To The World - Peru Hop
Callao: 5 tourist places that will leave you with your mouth open
THE 15 BEST Things to Do in Callao - Tripadvisor
Callao – Travel guide at Wikivoyage
Callao - All You Need to Know BEFORE You Go (2024) - Tripadvisor
The province of Callao in Lima | Machupicchu Terra
THE 15 BEST Things to Do in Callao (Updated 2024) - Tripadvisor
Callao - Wikiwand