San Marino is the smallest country in football history to boast a European Champion Massimo Bonini, born in San Marino won the European Cup (now the Champions league) with Juventus in 1985.
Cristiano Ronaldo is the all-time leading scorer in the UEFA Champions League with 140 goals. With the Portuguese now playing at Saudi Arabian club Al Nassr, it's unlikely that he'll add to this tally, which he accumulated over spells at Manchester United (21), Real Madrid (105) and Juventus (14).