It, like the other buildings, was growing out of the tree, it was roofed by huge leaves that overlapped like shingles, the huge doors were composed of what looked like vines, but were far too thick, and too far above ground to be roots.

hit the roof

raise the roof

the roof of the world

Get up onto the roof of the world, they don't get bigger than the High Himalayas, and all the rest of life just seems to fall into place around you.

Hillary's memory remains crystal clear about what they endured during that final push to the top on May 29, 1953, which resulted in his becoming the first person in history to stand on the roof of the world.

Everest has been climbed by more than 1,300 men and women, including nearly 80 Japanese, since Hillary and Tenzing first set foot on the roof of the world.

Origin

Old Englishhrōf, of Germanic origin; related to Old Norsehróf 'boat shed', Dutchroef 'deckhouse'. English alone has the general sense 'covering of a house'; other Germanic languages use forms related to thatch.