Paris and Los Angeles officials saluted a victory for the Olympic movement on Wednesday after both cities were handed the hosting rights for the 2024 and 2028 Games in a historic double award.
Paris, with a Games budget of 6.8 billion euros ($8.09 billion), had failed with previous attempts to land the 1992, 2008 and 2012 Olympics.
Bach said the unanimous International Olympic Committee decision would secure the future of the Games and ensure successful Olympics.
The Olympic Center and the 1980 Olympic Cauldron were illuminated in the colors of LA's iconic sunsets, while the marque displayed the LA 2028 logo to mark the return of the Olympic and Paralympic Games to the "City of Angels".
"Its inclusion for Rio was probably the first time a lot of people had seen it but the general interest in the game is growing and the athletes have solidified that with quality games".
The Los Angeles planning committee estimates that the games will cost $5.3 billion.
1984 Gold and Silver Olympian Sherri Howard during the Celebrate 2028 Olympics Parade at the Fairplex in Pomona, CA., Saturday, September 15, 2017.
Paris 2024 bid co-leader Tony Estanguet was overcome with delight just moments after International Olympic Committee members unanimously approved a joint award that had been agreed in July. Some 83 percent of residents in Los Angeles County said they want L.A.to host the Olympics in 2028 in the survey.
Bach added: "It is hard to imagine something better".
"The city of Paris will be a magnificent Olympic Park and transforming some of the world's most lovely and historic sites into temporary stunning stages for sport will provide unforgettable images around the globe". Ensuring the stability of the Olympic Games for the athletes of the world for the next 11 years is something extraordinary.
'These are two great cities from two great countries with a great Olympic history.
Both the 2014 winter Games in Russia's Sochi and the 2016 Rio de Janeiro Olympics were mired in controversy over corruption, embezzlement and doping allegations, dealing a major blow to the reputations of the event and the IOC.