So, it's finally here. Seven years after Lord Coe and his team won the bid to host the 2012 Olympic and Paralympic Games, the time has arrived, writes Chris Broadbent.
The final skirmishes over transport, ticketing and other political issues will fade into the background as the sport takes centre stage. But what are you most looking forward to? Is it the expected gold-rush from international superstars like Usain Bolt and Michael Phelps? Or are you patriotically looking forward to the exploits of the home team, particularly in sports such as rowing, sailing and cycling, where Team GB has taken a stranglehold on the international stage.
Personally, I am most looking forward to the endurance events - admittedly through red, white and blue-tinged spectacles. On the track, Mo Farah attempts an ambitious 5000m/10,000m double. But in the form of his life and in his home city, the dream could turn to reality.
Staying with athletics and the marathon, it wouldn't be an Olympic Games without an emotionally-charged medal bid by Paula Radcliffe. Though not quite the imperious athlete of a decade ago, she will be targeting her first ever Olympic medal to add to her otherwise immaculate collection. No matter the outcome, it will be riveting viewing.
Also at The Mall, where all the road events will finish, British Cycling will be looking to build on their already mighty reputation through recent Tour de France winner Bradley Wiggins and world champion Mark Cavendish. Should they succeed, even the Queen herself will rarely have heard a roar like it around Buckingham Palace.
There are more strong gold medal chances in the triathlon, where the down-to-earth Brownlee brothers will be going for an extraordinary sibling 1-2. Alastair and Johnny have set new standards in the sport with their unrelenting racing style.
There are some of my own must-see moments. What's yours? Tell us on our Facebook page.