This episode explores Fort Sherman, Panama: RadunstiHospital, Bulgaria; Rocchetta Mattei, Italy; andSiemensbahn Railway, Berlin, Germany.A jungle stronghold inPanama built to defend a prized American possession that soonfaced the threat of an elaborate Nazi conspiracy. In Italy, aneclectic hilltop structure built to be the home and laboratoryof a reclusive scientist making grand claims. A ghostlyrailroad cutting through the German capital of Berlin, thatbecame a potent symbol of a city divided. And, in the ruggedmountains of Bulgaria, a brutalist structure that once offeredhope to its residents, devastated in the wake of Communismcollapse.