Visit the old city center located on the right bank of the river Nervión, the Cathedral of Santiago with beautiful gothic cloister, the Plaza Nueva and the incredible Guggenheim museum, designed by the north American architect Frank O. Gehry and built on a 32.500 m2 site in the city center. The building itself is an extraordinary combination of interconnecting shapes. Orthogonal blocks in limestone contrast with curved and bent forms covered in titanium. ld city center located on the right bank of the river Nervión, the Cathedral of Santiago with beautiful gothic cloister, the Plaza Nueva and the incredible Guggenheim museum, designed by the north American architect Frank O. Gehry and built on a 32.500 m2 site in the city center. The building itself is an extraordinary combination of interconnecting shapes. Orthogonal blocks in limestone contrast with curved and bent forms covered in titanium.