Germany captain Philipp Lahm said the team's calmness and patience were key to beating Argentina 1-0 to clinch the World Cup in Rio de Janeiro.
The Bayern Munich defender told Fifa.com:
It's unbelievable what we have achieved. We improved throughout the tournament and didn't get down when things didn't always go our way.
We just stuck to our path and at the end we're standing here as world champions.
It's an unbelievable feeling. The team stayed calm and patient, we knew that we had something left at the end.
German themed pubs across London were filled with jubilant ex-pats as they gathered to watch their national team win the World Cup.
After Mario Goetz provided the late winner against Argentina, the London-based fans went into rapture as the Germans claimed their fourth World Cup trophy.
At the Zeitgeist pub in Vauxhall several hundred fans erupted with joy at the final whistle.
German Chancellor Angela Merkel joined in with the dressing room celebrations this evening, after the German national team won the 2014 Fifa World Cup.
She was joined by German president Joachim Gauck as the players posed for pictures after their 1-0 win over Argentina.
Argentina fans are consoling themselves this evening after their national team was beaten 1-0 by Germany in the World Cup final in Rio.
Some were left in tears and could not bring themselves to watch, after Germany's Mario Goetz scored the winner in extra time.
Germany have claimed the 2014 World Cup after a dramatic extra time winner by Mario Gotze - sending their fans into rapture.Read the full story ›
Germany's players lift the coveted trophy after winning the 2014 World Cup final 1-0 against Argentina at the Maracana stadium, in Rio de Janeiro.
Lionel Messi was given the Golden Ball award for being the World Cup's best player, despite finishing on the losing side in the final.
His Argentina side lost 1-0 to Germany in extra time.
England striker Daniel Sturridge says he is "jealous" of Germany's World Cup success.
Not even gonna lie I'm jealous it's not me. Fuel for the fire I guess... One day I hope to help England win something. That's the dream...
The Liverpool forward scored England's opening goal of the tournament but the side failed to progress past the group stage.
Colombia's James Rodriguez won the Golden Boot as the World Cup's top scorer after Germany's Thomas Muller failed to score in the final.
The Monaco marksman's six goal tally en route to the quarter finals when Colombia were knocked out by Brazil, was enough to secure him the title. Muller scored five.
Watch German fans gathered in central Berlin react to Mario Gotze's extra time goal: