The “Dreikönigskirche”, or “Church of the Three Kings”, is currently one of three places of worship of the Three Kings parish of Sachsenhausen, the largest Protestant parish in Frankfurt with some 6,200 members. It is situated directly on the banks of the River Main. Many believe the church to be older than it actually is. In truth, it was consecrated as recently as 1881. The precursor of this neo-Gothic church was the “Dreikönigskapelle” (“Chapel of the Three Kings”), consecrated in 1340. https://www.frankfurt-tourismus.de/en/Media/Attractions/Churches/Dreikoenigskirche
Behind the historical facade of the previous Frankfurt Opera House lies one of the most outstanding concert halls of major importance, way beyond the borders of Germany. The visitor is offered a high-quality program in all sections of music: classical music, jazz and world-wide famous musical and show productions. https://www.frankfurt-tourismus.de/en/Media/Attractions/Event-venues/Old-Opera-House
It now represents a classic example of the traditional half-timbered architectural style of times gone by. Every single house bears its own name. In the 17th century, the corner house, named "Grosser Engel", became the home of Frankfurt's first bank. https://www.frankfurt-tourismus.de/en/Discover-Experience/Best-of-Frankfurt2/Roemerberg-Ostzeile