Without a visa you can visit Minsk and any city in Belarus.
The traveler must arrive and depart through the airport in Minsk (except for travels to/from Russia)
Without a visa in Belarus, you can stay up to 30 days, counting the day of arrival and departure.
A journey lasting longer than 10 days requires mandatory registration in the police.
does not apply to residents of Baltic states and those who lives in hotels or hostels
Documents required for entry without a visa to Belarus
Identity document, valid for travel for 3 months beyond the holder’s come.
Each tourist must have for everyday of the trip minimum in any currency ~18
You can fly without a return ticket, but you must leave Belarus through the same airport and you cannot fly to Russia.