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.
The Lesnoy Mole Rear Range Light is an active lighthouse located in St. Petersburg in Russia. Located in a dockyard area on the commercial harbor waterfront of the city, the lighthouse guides ships entering and exiting the port. The lighthouse is made of metal and is considered as the tallest lighthouse in Russia.