Peach's Castle into Bob Omb Battlefield, and Kokiri Forest into The Great Deku Tree I think are both iconic as the first ventures into 3D Mario and Zelda. The opening of Metal Gear Solid as well.
Also a fan of Caves in the original Tomb Raider, and first exploring the mansion in Resident Evil. Raccoon City streets to the RPD police station in RE2 is up there as well.







