Arkham West Riddles - Batman: Arkham Asylum Guide - IGN

Just above the locked door to Arkham North in the passageway between the two areas, pull down the weakened wall up high with your Ultra Batclaw and grapple up

Arkham West Riddles - Batman: Arkham Asylum Guide - IGN

Caves Riddles - Batman: Arkham Asylum Guide - IGN

Arkham Mansion Riddles - Batman: Arkham Asylum Guide - IGN

Arkham Mansion Riddles - Batman: Arkham Asylum Guide - IGN

Botanical Gardens Riddles - Batman: Arkham Asylum Guide - IGN

Arkham Mansion Riddles - Batman: Arkham Asylum Guide - IGN

Steam Community :: Gids :: 100% Achievement Guide: Batman - Arkham Asylum

Arkham Mansion Riddles - Batman: Arkham Asylum Guide - IGN

Arkham West Riddles - Batman: Arkham Asylum Guide - IGN

The Riddler's Challenge - Batman: Arkham Asylum Guide - IGN