Cardiff's Millennium Stadium will host an entire round of Super League fixtures next season.
The Millennium Stadium in Cardiff has a capacity of 74,000
Three games will be played on both the 5 and 6 May, with exact details to be confirmed by the Rugby Football League.
The stadium, with a capacity of 74,000, was a popular venue for the Challenge Cup final from 2003 to 2005.
"We want to build on both the fans' liking for the venue and the progress rugby league is making in Wales," said RFL executive chairman Richard Lewis.
Rugby league fans have a high regard for the Millennium Stadium and believe me the feeling is mutual
Millennium Stadium's Paul Sergeant
A one-day pass, entitling spectators to watch three games, will cost from £18 to £30, with discounts for concessions.
A weekend six-game pass will cost from £30 to £45, with concessions again available.
"I know rugby league fans have a high regard for the Millennium Stadium," said Millennium Stadium chief executive Paul Sergeant.
"Their spirit, good humour and energy to enjoy themselves makes the 'Millennium Magic' weekend a mouth watering prospect for all involved."