How does a city get to host the Olympics?

They form a committee and bid on holding the games. The Olympic committee votes and narrows the choices and the ones in contention may sweeten their bid before the final selection vote.

Interval of every two years, candidate cities around the world make bids to the International Olympic Commission (IOC) to host the Olympic Games. 

The mayor of the city has to kiss an olympic officals ass

By being the dummies willing to spend the most amount of money to build the facilities exactly as the International Committee wants them. And that's taxpayer money at that.

They are chosen from a list of possible cities to host them.

How Is A Host City Is Chosen? Every two years, major cities from around the world make competitive bids to the International Olympics Committee for a chance to host the Olympic Games. The choosing of the host city usually happens seven years before the games.

they bid on it, like an auction ................................