From Tekkenpedia

Winter Palace
Walls	Yes
BG Music	Snow Castle

Winter Palace is a stage in Tekken 5: Dark Resurrection corresponding to Cathedral in Tekken 5.

The unique thing about this particular stage is that it's snowing inside of this place, almost as though it were mystic. There are two statues of angels on opposite ends holding swords. This is Devil Jin's stage.

This stage is also where Sergei Dragunov's Tekken 5: Dark Resurrection interlude takes place with Devil Jin.