The kukeri festival (pictured) is a colorful tradition in which men wear intricate costumes and masks depicting mythical ...

This mountain city in Bulgaria is known as the Machu Picchu of Europe but is less crowded and easier to get to, while still full of ancient mysteries.

In an ancient city in southern Bulgaria, archaeologists have discovered evidence of a past culture, but it may raise more questions than answers. At the Great Mound of Plovdiv, a stone temple ...