The Colorado Rockies are a Major League Baseball (MLB) franchise based in Denver, Colorado. Denver had long been a hotbed of minor league baseball and many in the area desired a major league team. In 1991, as part of Major League Baseball's two-team expansion (they also added the Miami Marlins), an ownership group was granted a franchise; they took the name “Rockies” due to Denver's proximity to the Rocky Mountains, which is reflected in their logo. They began play in 1993, sharing Mile High Stadium with the Denver Broncos their first two seasons while Coors Field was constructed. It was completed for the 1995 Major League Baseball season. The Colorado Rockies won one National League championship in 2007. They mounted a spirited rally in the last month of the 2007 regular season, winning 21 of their final 22 games, and qualified for the 2007 World Series. However, they lost to the American League champion Boston Red Sox.