Across the world, some of the most astonishing archaeological discoveries have come not from remote jungles or deserts but from beneath thriving streets and family homes. When people dug foundations, ...

Throughout human history, cities have been abandoned or reclaimed by nature. Sometimes people rediscover these cities using technology or by a stroke of luck. These five cities, buried under rock, ice ...

Underground cities sound like fantasy until the stairs actually tilt downward and daylight slips away behind concrete and stone. Across the world, people have carved homes, chapels, tunnels, and ...