Dhaka, July 23 -- Had the legendary explorers of the past been alive today, they would certainly have been attacked by prolonged bouts of depression - and also ennui. The state of today's amateur explorers is no better. With all the virgin territories and corners of earth already discovered in the last five hundred years, few places on the planet are left without having human footprints. Desperate people in search of habitats have settled down on even the remote islands. Many such mid-sea territories are being used as military bases of big powers. In this situation, the disenchanted state of the aspiring 'explorers' is understood. This plight has prompted many to climb tall mountains, and reach their unexplored summits. After the conquest...