What is 11th and washington?

Without additional context, it is difficult to determine specifically what 11th and Washington refers to. Here are a few possibilities:

• If you are referring to 11th and Washington streets in a particular city, additional context is needed to provide information about the area. Many cities have streets named 11th and Washington, so it would be helpful to specify which city you are referring to.
• If you are referring to a specific building or landmark located at 11th and Washington, please provide more information about the site. It could be a restaurant, museum, park, or other type of establishment.
• If you are referring to a historical event or other happening that occurred at 11th and Washington, additional context would be necessary to provide more information.