Another adventure type I can think of offhand, would be a spy or espionage type mission. Though something like this would probably be like a lot of role playing and doing skill challenges, than extensive combat. This would probably be more like a short mission, than anything which would encompass an entire D&D module.
But if I really wanted to play a spy/espionage type of rpg game, it may be easier to just open up my old Top Secret or James Bond rpg books, than playing something that is "shoehorned" into a fantasy game like 4E D&D.
But if I really wanted to play a spy/espionage type of rpg game, it may be easier to just open up my old Top Secret or James Bond rpg books, than playing something that is "shoehorned" into a fantasy game like 4E D&D.