- Sutro Baths History (nps.gov)
Adolph Sutro, the self-made millionaire who designed Sutro Heights and later the second Cliff House, developed the amazing Sutro Baths in 1894. With his special interest in natural history and marine studies, he constructed an ocean pool aquarium among the rocks north of the Cliff House. Sutro then expanded his ocean front complex by constructing a massive public bathhouse that covered three acres and boasted impressive engineering and artistic details.
- Orion Arm (Wikipedia)
The Orion Arm is a minor spiral arm of the Milky Way Galaxy that is 3,500 light-years (1,100 parsecs) across and approximately 10,000 light-years (3,100 parsecs) in length, containing the Solar System, including Earth. It is also referred to by its full name, the Orion–Cygnus Arm (not to be confused with the outer end of the Norma Arm the Cygnus Arm), as well as Local Arm, Orion Bridge, and formerly, the Local Spur and Orion Spur.
