The Denver Museum of Nature & Science already houses a vast trove of dinosaur bones, but it recently received an unexpected addition to the collection. The latest fossil didn’t come from a generous benefactor or anonymous donor–it came from beneath the museum’s own parking lot.

A museum in Denver has found a fossil that is almost 70 million years old under its parking lot while running an unrelated drilling project. "This may be the most unusual dinosaur discovery I have ever been a part of,