Bing found the following results
Callao - Wikipedia
Callao | Seaport & Historical Significance | Britannica
Callao: Lima's Port To The World - Peru Hop
Callao: 5 tourist places that will leave you with your mouth open
Callao – Travel guide at Wikivoyage
THE 15 BEST Things to Do in Callao - Tripadvisor
THE 15 BEST Things to Do in Callao (Updated 2024) - Tripadvisor
Callao - Wikiwand
THE TOP 10 Things to Do in Callao - 2024 (with Photos) - Tripadvisor
Callao - Simple English Wikipedia, the free encyclopedia