Do US citizens need a visa for Cuba?

Related questions

1. Do cell phones work in Cuba?
2. How much is a Cuban tourist card?
3. Is it safe to walk around in Cuba?
4. Does it rain all day in Cuba?
5. Are there Komodo dragons in Cuba?
6. Can I use my credit card in Cuba?
7. Are there scorpions in Cuba?
8. Does Cuba have alligators?
9. How dangerous is Cuba?
10. What is the best time of year to go to Cuba?

Tags

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2. #known
3. #cuban
4. #government
5. #prior
6. #valid
7. #citizens
8. #tourist
9. #obtain
10. #requires
11. #holder
12. #their
13. #arrival
14. #single
15. #traveling
16. #entry