Post-Human Architecture Problem

"The Hiding Place: Inside the World's First Long-Term Storage Facility for Highly Radioactive Nuclear Waste"

Deep in the bedrock of Olkiluoto Island in southwest Finland a tomb is under construction. The tomb is intended to outlast not only the people who designed it, but also the species that designed it. It is intended to maintain its integrity without future maintenance for 100,000 years, able to endure a future ice age. One hundred thousand years ago three major river systems flowed across the Sahara. One hundred thousand years ago anatomically modern humans were beginning their journey out of Africa. The oldest pyramid is around 4,600 years old; the oldest surviving church building is fewer than 2,000 years old.

This Finnish tomb has some of the most secure containment protocols ever devised: more secure than the crypts of the Pharaohs, more secure than any supermax prison. It is hoped that what is placed within this tomb will never leave it by means of any agency other than the geological.