Take a day trip to the northwestern corner of Bulgaria to see the Belogradchik rocks, located in the Balkan Mountains. You will drive 2.5 to 3 hours from Sofia until you reach this area. The rocks are grouped in various formations and are made up of primarily sandstone. In 2009, they were nominated as one of the New 7 Wonders of Nature. Many rocks have fantastic shapes and are associated with interesting legends. They are often named for people or objects they are thought to resemble, and on your tour, your guide might share some of these stories while pointing out the specific rocks and their names. The Belogradchik Rocks have also been declared a Natural Landmark by the Bulgarian government and are a major tourist attraction in the region. At the top of a hill near to some of the rocks is also a medieval fortress, known as the Belogradchik Fortress, built when the region was part of the Roman Empire. You will have the opportunity to visit the fortress and behold its well-preserved and menacing facade. Later, you will also be taken to the nearby Veneca cave, an incredibly beautiful cave with modern colorful lights. All entrance fees are included in the price and there will be time to stop for an optional lunch, which is not included.