I have visited quite a few places. The following is a list of places I have visited or stayed in the past few years.

1. Alaska (Anchorage, Exit Glacier, Seward)
   
2. Arizona (Phoenix, Tucson)
   
3. California (Disneyland, Los Angeles, San Diego, San Francisco, Sea World)
   
4. Colorado (Denver airport)
   
5. Connecticut (Hartford)
   
6. Delaware (Wilmington)
   
7. Florida (Disney World, Kennedy Space Center, Key West, Orlando, Splendid China, Tampa, Universal Studios)
   
8. Georgia (Atlanta)
   
9. Idaho (drive by)
   
10. Illinois (Chicago area, Champaign)
    
11. Indiana (Long Beach, Michigan City, South Bend)
    
12. Iowa (Ames, Iowa City)
    
13. Kentucky (drive by)
    
14. Louisiana (New Orleans)
    
15. Hawaii (Honolulu, Maui)
    
16. Maine (York Beach, York Harbor)
17. Maryland (Baltimore)
    
18. Massachusetts (Boston, Cambridge, North Dartmouth)
    
19. Michigan (Detroit area, Mackinac Island)
    
20. Minnesota (Duluth, Minneapolis)
    
21. Missouri (St. Louis)
    
22. Montana (Bozeman)
    
23. Nevada (Las Vegas)
    
24. New Hampshire (Hampton Beach)
25. New Jersey (Atlantic City, Northern Jersey area)
    
26. New York (Buffalo, New York City)
    
27. Ohio (Cedar Point, Cleveland, Columbus, Sea World)
    
28. Oregon (Columbia Gorge, Portland)
29. Pennsylvania (Erie, Philadelphia)
    
30. Rhode Island (Kingston, Newport, Providence)
    
31. Tennessee (Chattanooga, Nashville)
    
32. Texas (Houston, Galveston, Johnson Space Center, San Antonio)
    
33. Vermont (Adams Family Farm)
    
34. Virginia (Alexandria, Arlington, Fairfax, Williamsburg)
    
35. Washington (Mt. Rainier, Seattle, Tillicum Village)
    
36. Wisconsin (Superior, Wisconsin Dells)
    
37. Wyoming (Grand Teton National Park, Jackson Hole, Yellowstone National Park)
    
38. District of Columbia (Washington)
    
39. 13 states to go (I plan to visit all of them soon!)
    Alabama, Arkansas, Kansas, Mississippi, Nebraska, New Mexico, North Carolina, North Dakota, Oklahoma, South Carolina, South Dakota, Utah, West Virginia

Other places

1. Argentina (Bariloche, Buenos Aires, Cordoba, Tucuman)
   
2. Australia (Brisbane, Gold Coast, Sydney)
   
3. Austria (Vienna)
   
4. Bahamas (Nassau, Paradise Island)
5. Brazil (Port de Galinhas, Sao Paulo)
   
6. Canada (Guelph, London, Montreal, Ottawa, Thunder Bay, Toronto, Vancouver, Windsor)
   
7. Cambodia (Angkor Night Market, Angkor Thom, Angkor Wat, Bayon, Siem Reap, Ta Prohm)
   
8. China
9. Colombia (Bogota)
   
10. Cyprus (Limassol, Omodos Village, Pafos)
    
11. France (Paris, Toulouse)
    
12. Germany (Frankfurt, Munich)
    
13. Greece (Athens, Kos Island)
    
14. Hungary (Budapest)
    
15. India (Daan-Ghati, Delhi, Ghaziabad, GLA University, Goverdhan, Humayun's Tomb, IIT, KIET, Mathura, Red Fort, Sri Krishna Janmabhoomi)
    
16. Indonesia (Bali)
    
17. Ireland (Dublin, Maynooth)
    
18. Italy (Ancona, Florence, Milan, Rome, Venice)
19. Japan (Kobe, Kyoto, Nagoya, Tokyo, Wakoshi, Yokohama)
    
20. Korea (Daegu, Incheon, Jeju, Seoul)
    
21. Malaysia (Kuala Lumpur, Kuching, Kota Kinabalu)
    
22. Mexico (Cancun, Cocoyoc, Mexico City, Playa del Carmen)
    
23. Netherlands (Amsterdam)
    
24. New Zealand (Auckland)
    
25. Poland (Auschwitz-Birkenau, Krakow, Salt Mine, Zakopane)
    
26. Qatar (Desert Safari, Doha)
27. San Marino
    
28. Singapore
    
29. South Africa (Capetown, Pilanesberg, Pretoria)
    
30. Spain (Barcelona, Bilbao, San Sebastian, Seville)
    
31. Switzerland (Lausanne, Montreaux)
    
32. Thailand (Bangkok, Phi Phi, Phuket)
33. Turkey (Cappadocia, Goreme, Istanbul, Sile)
34. UK (London)
    
35. USA
36. Vatican
    
37. Vietnam (Ba Na Hills, Da Nang, Dragon Bridge, Hoang Thanh Hue, Ho Chi Minh City, Linh Ung Buddhist Temple, Old Town of Hoi An)

1. Russia
2. Belgium
3. Egypt
4. Saudi Arabia, Venezuela, Norway, United Arab Emirates, Philippines, Finland, Chile, Portugual, Czech Republic, Peru, Israel, Sweden, ...