Kuldīga is the pearl of Kurzeme, Latvia's western region. It is an ancient town with unique, distinctive architecture. Saint Catherine is believed to be the patron saint of Kuldīga, and thus the oldest church of the town has been named after St Catherine. The foundation of the building was laid as early as in 1252; later the church was remodelled a number of times. The small River Alekšupīte runs through the very centre of the Kuldīga old town, along the walls of the houses. The Old Town around the small river itself is unique: it is the only remaining 17th–18th-century ensemble of this kind in the Baltic states. A 4.5 m high waterfall on the Alekšupīte is the highest in Latvia. The pride of Kuldīga is the Venta Rapid, a 240-meter wide natural rapid which is the widest in Europe. Not far from the rapid there is the Kuldīga brick bridge built in 1874, one of the longest bridges of this type in Europe. Kuldīga was recognized an EDEN destination in 2007.