1. This logo is the logo of FC Barcelona which is a soccer team based in Barcelona, Spain. As an avid fan, this is my favorite logo of all time because of the emotional connection I have to it as a fan of many years. 
2. This logo incorporates the red and yellow which is tied into the identity of the team. The red and yellow in the logo represents the Catalan flag which is called the Senyera.
3. The shape of the team badge/corporate logo along with the team colors as well as the centered acronym which stand for the team name are very neatly designed and are appealing to the eye, partly a reason which has caused this team to be so widespread and remembered worldwide.