Before warning signs and security systems, curiosity led children into places that would now be strictly off-limits.

Each year, more than two million thrill seekers visit America’s eeriest abandoned sites, from ghost towns to shuttered prisons. Despite safety warnings, these haunting remnants offer Instagram-worthy ...

Entire towns, factories, hospitals, and amusement parks have been left to decay across the world, some due to economic collapse, while others are suffering the aftereffects of natural disaster, war, ...