So far, these are the countries and territories where I have set my footprints (25 countries):
Asia: Brunei, Cambodia, China, Hong Kong, India, Indonesia, Japan, Laos, Macau, Malaysia, Myanmar, Nepal, the Philippines, Singapore, Sri Lanka, Taiwan, Thailand, Timor-Leste, Vietnam
Europe: Austria, Belgium, Britain, France, Germany, Turkey
Note: The list of countries will also include some non-sovereign regions which, at some level, can be considered as different entity from their sovereign states. For example: Hong Kong and Macau which have their own immigration system (separate from China), New Caledonia (part of France), Gibraltar (part of UK), etc.