A disintegrating tower once a thriving cultural hub now stands hollow and derelict in Monrovia, Liberia; experts investigate and uncover a landmark skyscraper left to decay in the wake of a bloody political coup. Stories: 1) E.J. Roye Building, Monrovia, Liberia; 2) Chacaltaya Ski Resort, La Paz, Bolivia; 3) Doel, East Flanders, Belgium; 4) Warner and Swasey Observatory, East Cleveland, Ohio