- Cliff House, San Francisco (Wikipedia)
The Cliff House is a neo-classical style building perched on the headland above the cliffs just north of Ocean Beach, in the Outer Richmond neighborhood of San Francisco, California. The building overlooks the site of the Sutro Baths ruins, Seal Rocks, and is part of the Golden Gate National Recreation Area, operated by the National Park Service (NPS). The Cliff House is owned by the NPS; the building’s terrace hosts a room-sized camera obscura.
- Supergiant (Wikipedia)
Supergiants are among the most massive and most luminous stars. Supergiant stars occupy the top region of the Hertzsprung–Russell diagram with absolute visual magnitudes between about −3 and −8. The temperature range of supergiant stars spans from about 3,400 K to over 20,000 K.