The Queen's Jubilee event is now underway in Guild Wars 2, ArenaNet's MMORPG sequel. This includes a new gladiatorial arena, and like most such celebrations, lots of hot air:

A celebration of ten years of Queen Jennah’s rule is about to kick off in Divinity’s Reach! The queen has commissioned a new gladiatorial arena for the occasion—the Crown Pavilion—as a shining symbol of her people’s endurance.

Take a hot air balloon ride with dignitaries from across Tyria to the capital of the Krytan nation, and be there for the opening ceremony. Join in the festivities and compete in ceremonial combat in Her Majesty’s honor!