It’s just a list, but by now, I visited these countries so far (62 in total):

Europe (26)

• Andorra
• Austria
• Belgium
• Bosnia-Herzegovina
• Croatia
• Denmark
• Estonia
• Finland
• France
• Germany
• Great Britain
• Greece
• Hungary
• Italy
• Liechtenstein
• Luxemburg
• Monaco
• Netherlands
• Norway
• Poland
• Portugal
• Slovenia
• Spain
• Sweden
• Switzerland
• Turkey

Africa (5)

• Ghana
• Mauritius
• Morocco
• Namibia
• South Africa

The Americas (12)

• Argentina
• Bahamas
• Brazil
• Canada
• Chile
• Columbia
• Guadeloupe (Saint Martin)
• Mexico
• Panama
• Puerto Rico
• Sint Maarten (Netherlands Antilles)
• USA

Asia (16)

• Brunei
• China
• Hong Kong
• Indonesia
• Israel
• Japan
• Macau
• Malaysia
• Oman
• Palestine (Westbank)
• Singapore
• South Korea
• Taiwan
• Thailand
• UAE
• Vietnam

Oceania (2)

• Australia
• New Zealand

Former Countries (2)

• GDR
• Yugolsavia