The TimeVault

This is a structure based off of my dream last night, where you and a friend, let's name him John, are racing by wolfsled, and you both bump into each other and crash in thick, powdery snow, but you're all okay.. You two get up, the wolves following behind, and you two get to some structure you two can't explain.. It looks like it's made of brass, and it has a pillar in the middle, and it's in a rectangle shape, the sides hollowed out, and the corners and pillar standing tall, about 8 meters tall to be precise.. It all is strange to you both, but you go investigate, the two wolves following you, as they sit on elevated ground, which are pressure plates, and there's another on the other side of the pillar, as you go to stand on it, John thinks it's a bad idea, until it the ground starts lowering, the dark night getting darker until the floor closes above you, and a wall opens up into an old era desert, around 1200 AD and as you two walk out, the door closes..