The World Science Fiction Convention (Worldcon) is heading to New Zealand for the first after Wellington won the rights to host the 78th annual event in 2020.
Legendary Game of Thrones author George RR Martin will headline the event as the Toastmaster, which will run from July 29 to August 2.
Wellington Mayor Justin Lester said it was great that the city could attract such a high-profile event.
"It's great the city can attract such a high-profile convention and I'm sure it will be a roaring success that local businesses will benefit from," Lester said.
"Wellington is home to some of New Zealand's best creative talent and we will do our best to ensure the delegates find the city a home away from home."
The event is expected to bring 2000 visitors to the Wellington region and deliver $4 million to the economy.