- 11 outdoor pitches, five of which are floodlit and have under-soil heating.
- A full-size indoor 3G artificial pitch with a viewing gallery for up to 200 people.
- An altitude chamber to mimic a variety of playing conditions.
- An indoor 60m sprint track with equipment to measure speed and running style.
- Walls adorned with sporting slogans, such as American Olympian Jesse Owens: "A lifetime of training for just 10 seconds."
- A new Hilton hotel featuring suites named after former England players and managers.
Bernstein described the facility as "inspirational" and said it made him feel optimistic about the future of the nation's football.
He said: "This is the pinnacle clearly - and we hope that this will be an inspiration in a number of ways.
"One of the main objects of this, possibly almost the main object, is to produce thousands of more highly-qualified coaches.
A look inside St George's Park
"There's a lot more happening in English football at the moment in terms of youth development. We're trying to move young players away from this physical side, of wanting to win too much when they're too young.
"We want more skill-based football, kids to enjoy their football more. There's a great deal aimed at that."
England's senior men's team have not won a major international tournament since the 1966 World Cup and have failed to reach a semi-final since the 1996 European Championship.
The women's side have made three World Cup quarter-finals and twice finished runners-up in the European Championship.
David Sheepshanks, chairman of St George's Park, said the new complex can help England close the gap on recent World Cup winners such as France and Spain.
"This is a place to inspire young people and young coaches to invest in themselves and go beyond just getting the badge," he said.
"The teachers of the game have the defining influence. We are investing in the teachers so that we can get ahead of what they are doing in France and Spain.
"This is a deliberately long-term view. Really it is the investment in coaches that is crucial and from 2020 onwards we will have winning England teams."
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