An ambitious Nazi project in the Czech Republic; a Cold War relic in Rochester, England; a cutting-edge research complex built by Nikola Tesla; and a research station in the California mountains. Stories: 1) Borovsko Bridge, Švihov, Czechoslovakia; 2) B39 Black Widow, Rochester, England;
3) Wardenclyffe Tower, Long Island, USA; 4) Barcroft Field Station, California, USA.
