Top 20 websites to             expand your  general knowledge:

1. Wikipedia: 

A vast online encyclopedia covering various topics.

2. TED:

 Inspiring talks on science, technology, art, and more.

3. Coursera:

 Online courses from top universities worldwide.

4. Khan Academy: 

Free educational resources on subjects like math, science, and history.

5. National Geographic:

 Explore science, history, and culture through articles, videos, and photos.

6. BBC Knowledge:

 Articles, videos, and quizzes on science, history, and culture.

7. The Conversation: 

Academic insights on current events and topics.

8. Open Culture:

 Free online courses, e-books, and educational resources.

9. Big Think:

 Expert opinions and insights on various subjects.

10. Quora:

 Q&A platform covering diverse topics.

11. Crash Course: 

Educational videos on subjects like history, science, and literature.

12. Duolingo: 

Learn languages through interactive lessons.

13. MIT OpenCourseWare: 

Free online courses and resources from MIT.

14. edX: 

Massive Open Online Courses (MOOCs) from top universities.

15. Scientific American: 

News, articles, and insights on science and technology.

16. The Guardian's Education:

 Articles and resources on education,science and culture

19. Aeon: 

In-depth articles on philosophy, science, culture, and more.

20. *FutureLearn*: Online courses and articles on various subjects.

These websites offer a wealth of knowledge on diverse topics. Enjoy exploring!

Would you like more recommendations or specific topics?