Back in the Late Cretaceous era, 67.5 million years ago, dinosaurs roamed Denver's modern-day City Park. The intrigue: The Denver Museum of Nature & Science, on the eastern edge of the park, announced Wednesday it unexpectedly discovered a partial-bone fossil 763 feet below the surface of its 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,

Scientists at a Denver museum stumbled onto the oldest and deepest-known dinosaur fossils unearthed in the city when drilling a test well for geothermal energy.