Some examples of palliative radiation therapy are: 1  Radiation given to the brain to shrink tumors formed from cancer cells that have spread to the brain from another part of the body (metastases). 2  Radiation given to shrink a tumor that is pressing on the spine or growing within a bone, which can cause pain.
The Pharos (Lighthouse) of Alexandria. Built: About 270 B.C. Location: On ancient island of Pharos in harbor of Alexandria, Egypt History: Upon its completion, the Alexandria lighthouse -- commonly estimated to have been about 400 feet high -- was one of the tallest structures on Earth.
Beautiful Lighthouses in America. Take a photo tour of some of Americaâs most beautiful lighthouses, from the California coast to the shores of Maine. Sitting atop a pink rock cliff surrounded by pine trees, this 1858 lighthouse is still in operation on the southern tip of Mount Desert Island in Maineâs Acadia National Park. Get the Latest.