A project by Icelandic firm s.ap arkitektar envisions the year 2150, when buildings and cities made from lava could be a reality.

By Francesca Perry, CNN Venice, Italy (CNN) — Erupting from fiery volcanoes, lava has historically been an uncontrollable force that destroys buildings and neighborhoods in its wake. But what if ...

Videos of people sipping on molten lava, eating rocks, and cutting fruits made of glass are racking up millions of views on social media.