I'll list some adventure games:
Gateway
Gateway II
Deja Vu
Full Throttle
Sam & Max Hit the Road
Lure of the Temptress
Beneath a Steel Sky
Simon the Sorcerer
Space Quest 6
Amerzone
Myst
Riven
The Hobbit
Indiana Jones and the Fate of Atlantis
Loom
The Dig
The Secret of Monkey Island
Monkey Island 2:LeChuck's Revenge
Broken Sword
Little Big Adventure
Starship Titanic
Shivers
Phantasmagoria
Ripper
and there's many, many more