Charr fighting arena should allow you to challenge other players to a duel.
… This is honestly the most perfect place Anet could ever have for PvE player dueling, it’s arguable as a training area to fit into lore, gets people to go visit the Black Citadel, and it’s well out of the way for people who aren’t interested.
Someone should go put it in suggestions if nobody has.
(I also really want the bar brawl)
Syrlya | Sylvari Mesmer
Arabelle Jones | Human Engineer
Stormbluff Isle