Chiesa d'Ognissanti, located near the port of Trani, is a unique church, which according to the legend, was built by the Knights Templar in the 12th century and served as a place of blessing for Crusaders heading to the Holy Land. Whether you believe the stories or not, this church is a prime example of Pugliese-Romanesque architecture from that era. It's definitely worth checking out if you're into history and cool old buildings! Note that opening times are very limited, but the facade is also beautiful to see.