Galata Tower was created in 1348.

By the Geonese in 1348.

Yes. In Istanbul there are building height restrictions in the historic centers of the city preventing a building from exceeding the height of the Galata tower.

Galata Bridge was created in 1994.

The Byzantine Empire had its naval headquarters there, and walls were built along the shoreline to protect the city of Constantinople from naval attacks. At the entrance to the Horn, there was a large chain pulled across from Constantinople to the old Tower of Galata (which was known as the Megalos Pyrgos (Great Tower) among the Byzantines) on the northern side, preventing unwanted ships from entering. This tower was largely destroyed by the Latin Crusaders during the Fourth Crusade (1204), but the Geneose built a new tower nearby, the famous Galata Tower (1348) which they called Christea Turris (Tower of Christ).