God's bridge (Божия мост - Bulgarian) is a naturally created tunnel from the river Lilyashka bara. It is located 15 km North from the town of Vratsa on the side of road to Chiren. Cave underneath is 20 meters high by 25 meters wide, and long about 100 m total. At the top of it there is a grass field and it is very hard to understand that there is a huge cave below.