If you're from the Schengen area, or are allowed to work in the European Union, you are able to skip the application altogether and travel straight to polish territory. Polish authorities in the border won't assess your passport when entering the nation. However, if you intend to live or work in the Schengen area, you will still need to have a valid passport. For the ones that do not have one of these documents in their possession, they are able to apply for a visa directly. Once you've received your visa, you may stop by some Schengen-country airportinternational airports in other countries, as long as you carry your original passport.