Scientists have discovered enormous termite mounds in Brazil that are visible from space. The insects have been building onto these same mounds for some 4,000 years, so construction began not long after humans built the Pyramids of Giza.

See the source article by following the link below:
Scientists have discovered enormous termite mounds in Brazil that are visible from space. The insects have been building onto these same mounds for some 4,000 years, so construction began not long after humans built the Pyramids of Giza.