The Monastery of Simonos Petra clings almost impossibly to a sheer cliff above the Aegean Sea in northern Greece.

Depending on the map projection used, the size of continents can be quite distorted - and a map showing the true size of each ...

However, the most powerful reminder of the progression of time lies not in the transformation of color but in the visible ...

Known as “the city of darkness,” Kowloon Walled City was a crowded, tangled metropolis of 60,000 people with little political ...