And then there were four. The final week of Euro 2020 - this most unusual of major tournaments - comes to a head in London this week, with both semi-finals and Sunday's final at Wembley.
For England, it is a huge opportunity unlikely to come round again for this generation of players - the chance to triumph on home soil, having played all but one of their matches at the National Stadium.
Yet on Wednesday, Gareth Southgate's side will face an inspired-Denmark outfit, producing some stunning play in wake of the shock of Christian Eriksen's cardiac arrest in their opening defeat to Finland.
Spain (L) face Italy (R) in the first semi-final at Wembley Stadium on Tuesday evening
An in-form England side host Denmark in the second semi-final at Wembley on Wednesday
The other semi-final sees a clash of European heavyweights in Spain and Italy. The Spanish have overcome an underwhelming group-stage start to stutter into the semis, beating Croatia in extra-time and Switzerland on penalties.
Meanwhile the Italians have arguably been the in-form team of the tournament, winning all three of their group matches and coming through impressively against Belgium on Friday night.
But as London becomes the focus this week, where are all the teams training ahead of their semi-final showdowns and where are they based? Sportsmail takes a look.
ITALY
Like all four semi-finalists, Italy played all their group games in their home country, in Rome, but have been on the road ever since.
It won't be their first visit to London in this tournament. Their dramatic last-16 win, after extra-time, against Austria was at Wembley, while their quarter-final triumph was in Munich.
Yet ahead of Tuesday's showdown with Spain, the Azzurri are basing themselves in Harrow, north London.
Italy trained at the base for the Italian FA in Coverciano, Florence before flying over to London
Roberto Mancini's squad will train in London tonight after their session at home this morning
They trained in Coverciano, Florence this morning - home to the Italian FA - before flying into Luton this afternoon on a charter flight, according to Italian outlet ANSA.
Usual UEFA protocol means teams often have the opportunity to train at the stadium itself the evening before a game.
However, in order to protect the Wembley pitch, that won't be the case this week. Instead, the Italians will train tonight, at around 5:00pm, at the Hive Stadium in Harrow, home to National League side Barnet FC.
The Italians will train at The Hive, home to National League side Barnet FC, on Monday evening
The 6,500-capacity stadium opened in 2013 and also hosts Tottenham Hotspur women's team
After that, it's the usual matchday preparation as Italy look to repeat their 2012 feat and
