Biology Of Depression - Neurotransmitters. A literal ton of research has been done on the causes of depression. Below is a brief discussion of the multiple biological, psychological and social factors that have been identified as being related to the development of depression.
The Golden Gate Bridge is a suspension bridge spanning the Golden Gate, the opening of the San Francisco Bay onto the Pacific Ocean. As part of both US Highway 101 and California Route 1, it connects the city of San Francisco on the northern tip of the San Francisco Peninsula to Marin County.
Golden Gate Bridge: Completed in 1937 as the then longest suspension bridge in the world at a total length of 8,921ft, the Golden Gate Bridge is perhaps the most famous bridge in the world. Situated in San Francisco, the bridge was an enormous construction achievement at the time.