41. The prominent Bernal Heights hill overlooks the San Francisco skyline and features a microwave transmission tower . 42. Unlike gas lines, buried under the ground, transmission towers often can be seen from miles away. 43. The height has also led to the construction of two radio transmission towers on the summit. 44. They were killed in Monday night's strikes, apparently targeting a transmission tower and munitions dumps nearby. 45. They've already checked out the transmission tower for Telcom, a cable television company in Floyd County. 46. Three transmission towers are located at the summit of Mount William including an amateur radio repeater. 47. Demand for transmission towers and antennas is soaring. 48. It even buckled huge metal-frame transmission towers that ordinarily resist the harshest stresses nature can inflict. 49. Consider the companies that build or own transmission towers for the rapidly expanding wireless communications business. 50. Surrounded by a cluster of soaring transmission towers , the substation contains five reactors and two transformers.