Not all Muslims believe is the same sort of Islam, there are many interpretations of the koran and many different branches and schools in Islam. The best known split, into Sunni Islam, Shia Islam, and Kharijites, was mainly political at first, but eventually acquired theological and juridical dimensions. There are three traditional types of schools in Islam: schools of jurisprudence, Sufi orders and schools of theology. There are also major denominations and movements that have arisen in the modern era. So not every mosque or place of worship is the same....and the interpretations of the koran can be widely different.
1. Sunni Islam
2. Shia Islam
3. Major sub-denominations
4. Ghulāt
5. Kharijite Islam
6. Sufi orders
7. Schools of jurisprudence
8. Sunni
9. Shia
10. Ibadi
11. Schools of Islamic theology
12. Kalām
13. Ash'ari
14. Maturidi
15. Traditionalist Theology
16. Murji'ah
17. Qadariyyah
18. Mu'tazili
19. Jahmiyyah
20. Bāṭeniyyah
21. Later branches
22. African-American movements
23. Ahmadiyya movement
24. Gülen / Hizmet movement
25. Islamism
26. Muslim Brotherhood
27. Jamaat-e-Islami
28. Liberal Muslims
29. Mahdavia
30. Non-denominational Islam
31. Tolu-e-Islam
32. Quranism
33. Salafism and Wahhabism
34. Ahl-i Hadith
35. Salafi movement
36. Islamic Modernism
37. Wahhabism
1. Sunni Islam
2. Shia Islam
3. Major sub-denominations
4. Ghulāt
5. Kharijite Islam
6. Sufi orders
7. Schools of jurisprudence
8. Sunni
9. Shia
10. Ibadi
11. Schools of Islamic theology
12. Kalām
13. Ash'ari
14. Maturidi
15. Traditionalist Theology
16. Murji'ah
17. Qadariyyah
18. Mu'tazili
19. Jahmiyyah
20. Bāṭeniyyah
21. Later branches
22. African-American movements
23. Ahmadiyya movement
24. Gülen / Hizmet movement
25. Islamism
26. Muslim Brotherhood
27. Jamaat-e-Islami
28. Liberal Muslims
29. Mahdavia
30. Non-denominational Islam
31. Tolu-e-Islam
32. Quranism
33. Salafism and Wahhabism
34. Ahl-i Hadith
35. Salafi movement
36. Islamic Modernism
37. Wahhabism