Yes, United States citizen can enter Taiwan without a visa provided that their stay is no more than 30 days. In addition, the passport has to still valid 6 months after the entry date, and you have a return ticket.
yes
what are the countries you can enter without a visa for mongolian people
If you have a Visa!
yes
A Polish national is REQUIRED to have a visa to enter the U.S. So, without a visa, a Polish citizen cant enter the US at all- period (never mind how long he can stay).
There is a new immigration rule that states that TAIWANESE People DO NOT need a Visa to enter in MEXICO anymore. This just happened early this year (2012). Thus Why MEXICANS are required to get a Visa to enter into TAIWAN ? Shouldn't be reciprocal since this is a result of DIPLOMATIC agreement?
south African citizen can enter to papua new guinea,new zealand without a visa ?
hong kong for sure.
I am Kenyan citizen and do i need a visa to enter Ecuador?
If you are US, Canadian or European citizen you can enter Mexico without the need of a visa.
Unless you are a citizen of a country that has a visa-free arrangement with Ireland, you cannot enter the country without one.
If you are a citizen of a country whose citizen do not need a visa to visit Japan, then you are fine; Green card does not waive visa requirement for Japan.
Costa Rica is not an eligible country in the Visa Waiver Program, therefore a costa rican citizen would need a visa to enter the U.S.