New Zealand is home to the Kauri trees, a giant evergreen that has almost disappeared, mainly because it's light, strong and rot resistant, so favored for ship building. Of the remaining trees, the largest is 16 meters in girth and several are 2000 years old. Cape Reigna, at New Zealand's north end, was a swamp at one time, and the locals dig preserved trunks and stumps out of the bog. They use the wood to fashion musical instruments and crafts, from wood thousands of years old.
The Kauri mill has a shop where people can buy pieces of wood, or things made from it, that's centerpiece is this staircase.
This staircase was hollowed out of a stump, reportedly 75,000 years old.
That may or may not be true, but it sure was a big one.
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