The obvious one - and I'm amazed we've made 11 posts without it cropping up - The Legend of Zelda: Ocarina of Time. Yes, we all know the majesty of wandering out onto Hyrule Field for the first ever time, the wonder of the incredible draw distance, the soaring soundtrack - all the better in the 3DS remake (still the best reason to own a 3DS, IMHO.)
My second choice is a strange one, but I'm going to go with the Phoenix Wright series; whilst technically they are just still backgrounds, some of the artwork is absolutely exquisite and as you play through the series it's a lot of fun looking out for the 'in jokes' and references to previous jokes and characters, as well as the usual internet humour. Accompanied by Masakazu Sugimori's music, it is fun just wandering around 'examining' everything and absorbing oneself in the game universe.
Spotters badges for Skyrim, Xenoblade Chronicles and the utterly beautiful Yamanose/Dobuita in Shenmue - one of my favourite games of all time.
XBox 360 Gamertag: jcdentont1000
Nintendo 3DS Friend Code: TBC (Now, where did I leave my 3DS..)
"Trust no one. Question everything."