With three candidate cities left, the final bids for 2020 Olympic Games have officially been submitted.
The final cities are Tokyo, Madrid and Istanbul. Each city has entered multiple bids over the last decade, and each brings its own strengths and weaknesses to the bidding process.
Here's a quick breakdown of those three cities, and what their bids encompassed.
The only finalist to have previously played host to the Olympics, Tokyo hopes to bring the summer games back for the first time since 1964.
The city of Tokyo finished third in its bid for the 2016 games, but believe they now have the strengths to over correct those weaknesses from the earlier bid.
Still reeling from the effects of the disastrous 2011 tsunami, no doubt winning the games would be a huge boon not just to Tokyo, but to the country of Japan as a whole.
Due to its solid bid, Tokyo is believed to be the favorites for 2020.
A longtime contender for the summer games, Madrid hopes that its third bid will finally do the charm.
While Spain is reeling from Europe's economic downfall as much as anyone, the country believes heavily in its strong bid.
A major strength for Madrid is that it reportedly has 80 percent of the venues needed for the games already built.
Of course, the economic issues can play in Madrid's favor. Certainly the money and jobs that go into the makings of the Olympic Games would provide great aid for the ailing country.
This is Istanbul's fourth bid for the Olympic Games, and the city hopes it will finally pay off.
As a growing economy, no doubt the added tourism and money would help fuel Istanbul's advancement. This is also the first time the Prime Minister has launched the Olympic bid.
One concern with Istanbul is security, as Turkey is currently at conflict with Syria. The country is currently host to 150,000 refugees.
With its bid, the city continues to attempt to grow its athletic image, as it will also play host to the 2013 FIFA U-20 World Cup and 2014 FIBA World Championship for Women.