Old Huts Built from Mammoth Bones
Nandaro / Wikipedia, Tiny Fox Lab

In 1965, a Ukrainian farmer dug up the lower jawbone of a mammoth. Further excavations revealed the presence of 4 huts, made up of a total of 149 mammoth bones. These dwellings, dating back some 15,000 years, were determined to have been some of the oldest shelters ever built. – Tiny Fox Lab Facts

Preview photo credit: Nandaro / Wikipedia
Source: https://en.wikipedia.org/wiki/Early_European_modern_humans