The most intimidating
The place seems to come alive when the Kop, the stadium's most vocal stand, bellows out "You'll Never Walk Alone" - especially on European nights.A host of key matches have been won due to the Reds' 12th man, just ask Chelsea or Dortmund fans.
Liverpool's historic base has this magical aura about it on matchdays.
Always in competition with River Plate's Estadio Monumental, the Boca Juniors ground just about wins the battle in being the scariest stadium in Argentina.
It's not necessarily the structure of the ground, but more those who occupy the seats that makes the Den one of the most notorious football stadiums to visit in England.
From cut-throat gestures from the fans to choreographed gunfire, many teams and their travelling supporters have left Instabul in a daze due to the sheer hostility they face.
Bolshaya Sportivnaya stadium, also known as the Glavnaya Arena, looks like a clear remnant of the Soviet Union and its feel may cause anyone playing there to feel a certain sense of unease.