75 Landmarks of the World (Tell Me Why, Issue 75)

A land mark basically means something conspicuous that marks a place. It can be anything that's easily recognised from a distance, that has historical, cultural, or aesthetic importance. It could be a natural feature of a landscape, or even a man-made structure.
We use the word 'landmark' also to mean a significant event to mark a turning point. In this sense, this is a landmark issue for Tell Me Why. To commemorate the significant, 75th issue of Tell Me Why, we are showcasing stunning 75 landmarks of the world - both man-made, and natural.