Germany were 5-0 up after 29 minutes - faster than any team in World Cup history.
The result was Brazil's first competitive home defeat in 39 years.
Germany striker Miroslav Klose becomes World Cup history's record goalscorer with 16 goals in 23 games.
The 7-1 defeat equalled Brazil's heaviest margin of defeat, a 6-0 loss at the hands of Uruguay in the 1920 Copa America, but the impact of this reverse, not just on the world stage but in their homeland, will put this alongside the 1950 World Cup final defeat by the Uruguayans in Rio.
This was Brazil's first defeat at home in 12 years.
The 7-1 victory was the first time a team had scored seven in a World Cup semi-final, and the biggest defeat in one of these games - beating West Germany's 6-1 victory over Austria in 1954.
This is the first World Cup game with eight or more goals since Saudi Arabia v Germany in 2002 (0-8).
No team had previously conceded five or more goals by half-time in a World Cup semi-final.
This is Brazil's biggest defeat in World Cup finals history, surpassing their 3-0 loss to France in the final in 1998.
Germany scored two more goals in the game, 7, than England did in their past two World Cups combined.
Brazil's first shot on target was in the 51st minute.
There were 179 seconds between Germany's second and fourth goals.
Germany netted as many goals in this semi-final as they had in their previous six (1982-2010).
Thomas Müller has scored 10 goals and provided six assists in 12 World Cup matches.
Germany have scored more goals in this tournament than they did in 1990 and 1966 - a total of 16.
Germany scored 4 goals in 6 minutes.
Germany have scored the most World Cup goals with 223, overtaking Brazil (221).
A record 35.6 million tweets were sent during the FIFA World Cup 2014 semi-final between Brazil v Germany.
