To list a few:
NOTB scream
'We seem destined to live in fear, and some would say Armageddon is near' verse from The Legacy
Rime of the Ancient Mariner scream and instrumental section
Meet me theeeeeeeeeeeeeere from 'The Parchment'
'Love in Angerrrrrr' from 'Hell on Earth'
Double choruses in 'Stratego'
'I accuse you! Before you know the crime it's all too laaaaaaaaaaaaate' from 'Out of the Silent Planet'
The heavy overdriven riffs in Brighter than a Thousand Suns
Final 'We slip into the niiiiiiiiiiiiiiiiiiiiiight' from 'Speed of Light'
'Ascending the throne wearing feathers & shells, he brought back our lives from the voiiiiiiiiiiiiiiid' from 'The Book of Souls'
The chorus to 'The Red & The Black' and the melodies during the instrumental section
The melody proceeding and leading into the 'help me, help me to see my true self without seeing the future' from 'Infinite Dreams'
Dual guitar harmonies proceeding the guitar solos on Phantom of the Opera
'Laying low in a blood filled trench, killing time 'til my very own death, on my face I can feel the falling rain, never see my friends again' - Paschendale
Adrian's guitar solo on 'The Writing on the Wall'
Adrian's solo on 'Stranger in a Strange Land'
The instrumental section into final verse and chorus on 'Powerslave'
Triple guitar melody on the refrain in Brave New World before the final chorus
NOTB scream
'We seem destined to live in fear, and some would say Armageddon is near' verse from The Legacy
Rime of the Ancient Mariner scream and instrumental section
Meet me theeeeeeeeeeeeeere from 'The Parchment'
'Love in Angerrrrrr' from 'Hell on Earth'
Double choruses in 'Stratego'
'I accuse you! Before you know the crime it's all too laaaaaaaaaaaaate' from 'Out of the Silent Planet'
The heavy overdriven riffs in Brighter than a Thousand Suns
Final 'We slip into the niiiiiiiiiiiiiiiiiiiiiight' from 'Speed of Light'
'Ascending the throne wearing feathers & shells, he brought back our lives from the voiiiiiiiiiiiiiiid' from 'The Book of Souls'
The chorus to 'The Red & The Black' and the melodies during the instrumental section
The melody proceeding and leading into the 'help me, help me to see my true self without seeing the future' from 'Infinite Dreams'
Dual guitar harmonies proceeding the guitar solos on Phantom of the Opera
'Laying low in a blood filled trench, killing time 'til my very own death, on my face I can feel the falling rain, never see my friends again' - Paschendale
Adrian's guitar solo on 'The Writing on the Wall'
Adrian's solo on 'Stranger in a Strange Land'
The instrumental section into final verse and chorus on 'Powerslave'
Triple guitar melody on the refrain in Brave New World before the final chorus