No one was hurt after a wall collapsed in Northwest D.C. Saturday, according to DC Fire and EMS. Firefighters responded to ...

The towering walls of the Gua Nasib Bagus ... of a cave—never connected the Clearwater cave system to its neighbor that seemed so tantalizingly close. But the expedition succeeded in finding ...

“You’re trying to get as close as possible to the paint layer ... pushed modern humans to express their identity by painting on cave walls—ancient hominin flag-planting.