When the final whistle blew at Arena Fonte Nova in Salvador, Brazil yesterday, it didn't just signal the end for the United States and Jurgen Klinsmann. It was also the conclusion of arguably the most exciting Round of 16 in World Cup history. There were a record five out of eight matches that needed extra time—and beyond, in some cases—in order to decide a winner and drama ensued from Brasilia to Belo Horizonte and everywhere in between. Tim Howard set a record for the most saves in World Cup history with his 16 denials against Belgium and the 154 goals scored so far in the tournament have already surpassed the 145 goals scored in total at the 2010 World Cup in South Africa.

Colombia's James Rodriguez continued his run of scoring in all of the South American's games by netting a brace during Colombia's 2-0 victory over Uruguay. He now leads the race for the Golden Boot at this tournament with five goals all together. The quarters are now set, with France set to take on Germany to open the round on July 4, while Brazil will clash with Colombia later that day. July 5 will begin with Argentina locking horns with Belgium, and the Netherlands and Costa Rica will then do battle for the last spot in the semis. But before you look ahead to this coming weekend, we took the time to stop and ask ourselves: What the Hell Just Happened in the Round of 16 at the World Cup?

Written by Adam Silvers (@silversurfer103)