3. Welcome to WorldCat.org | WorldCat.org
Link: https://www.worldcat.org/topics/welcome
Description: Web ResultWorldCat.org helps you find exactly what you need from thousands of libraries around the world. It’s a search engine for library materials: books, e-books, audio books, videos, databases, research materials and data, maps, records, archives, digitized documents, scans of rare works, photos of local historical significance, …