A new conference and events center in the U.K. is said to be one of Europe’s “most sustainable and healthy” structures. And it was built with almost $1.5 million worth of chalk. No kidding.

Reader support makes our work possible. Donate today to keep our site free. All donations TRIPLED!

Extracted from the White Cliffs of Dover, the chalk was literally pounded into place to create the walls of the structure. Other sustainable materials — like locally sourced clay tiles and an insulated soil roof — were used as well, and the building as a whole needs just 15 percent of a conventional building’s energy requirements.

Revenue from events held at the Pines Calyx will go toward maintaining the grounds. Which, I can only imagine, will involve a lot of dusting. Perhaps they could put those furry hats to use?