New York, U.S.A.
The modern day dance of Salsa began in New York with heavy influence of the dance from countries like Cuba and Mexico. The salsa is a dance that consists of hip movements by some steps and shifts of the lower body. The upper body stays nearly unaffected throughout the whole dance (shown in the picture with the girl in yellow). Salsa dance socials exist today and occur at clubs, bars, ballrooms, restaurants, and especially outside during festivals. The Monterrey Institute of Technology and Higher Education, Mexico City has students who learn to do specific dances such as the salsa. There are many salsa competitions all over the world each year.
So You Think You Can Dance - Salsa