Near the Serbian border is this town of 5,000 people, home to the 200-million-year-old Relogradchik Rocks. With northwestern Bulgaria's only natural science museum, an observatory where you can gaze at the night sky, and an ancient fortress, Belogradchik has enough activities to entertain year-round. It's especially good for families.
DARK PLACES: THE WORLD'S MOST MORBIDLY FASCINATING DESTINATIONS
Not everyone has the courage to explore these macabre destinations. Do you?
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