Schläfli symbol (Wikipedia)In geometry, the Schläfli symbol is a notation of the form {p,q,r,…} that defines regular polytopes and tessellations.
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Titlow Beach (Wikipedia)Titlow Beach is in Tacoma, Washington, USA. It is located along Puget Sound near the Tacoma Narrows Bridge. It has a beach, community center, park, water play area (all of which are run by Metro Parks Tacoma), one restaurant., a view of the Tacoma Narrows Bridge, a small boardwalk, and is a popular scuba diving area.
Mossy concrete at Titlow Park