it is our country
Athens
It's different every time.
The safety of the athletes and visitors to the Olympic Games in the host countries is a huge concern.
Turin, Italy
No this is the first time, a link is below for host countries.
because some countries have more major cities that could host than others
London, United Kingdom is the host city of the 2012 Olympic Games.
Cities apply for the spot, then the International Olympic Committee (I.O.C.) takes a handful of those cities as candidates. Then from those cities the I.O.C. votes for one city to hold the Olympic Games.
The declaration that opens the Games is made by the host country's head of state or their representative.
No.
Seoul was the first city to host the Summer Olympic Games. In 1806.