Case in point: Wayfarer’s Reverie has returned to the game. This is an annual event timed around the anniversary of Guild Wars 2. During the Wayfarer’s Reverie, adventurers are encouraged to take a tour of classic Guild Wars locations, one for each of the campaigns and the expansion. Players will not only get a dose of lovely nostalgia for doing so but their choice of several rewards as well.
The event will run until September 1st. If you need a hand with all of the quests and event details, check out the Guild Wars Wiki for detailed information.
Source: Guild Wars. Thanks Arsin!