- Gum Wall (Wikipedia)
The Gum Wall is a brick wall covered in used chewing gum under Pike Place Market in Downtown Seattle, Washington, United States. It is located on Post Alley near Pike Street, south of the market’s main entrance off 1st Avenue. Parts of the gum coating alongside the walls are several inches thick, and the coating is 15 feet (4.6 m) high along a 50-foot-long (15 m) section. The Market Theater Gum Wall has become a tourist attraction and local landmark since it was unintentionally created in the 1990s.
- New General Catalogue (Wikipedia)
The New General Catalogue of Nebulae and Clusters of Stars (abbreviated NGC) is an astronomical catalogue of deep-sky objects compiled by John Louis Emil Dreyer in 1888. The NGC contains 7,840 objects, including galaxies, star clusters and emission nebulae. Dreyer published two supplements to the NGC in 1895 and 1908, known as the Index Catalogues (abbreviated IC), describing a further 5,386 astronomical objects. Thousands of these objects are best known by their NGC or IC numbers, which remain in widespread use.