Double staircase, cleanliness, beautiful
Architect
Only thing I can think of is ivory. They do produce it, it is exported but that's illegal...
Answer: School Museums
Explanation: In 20th century, new instructional media appear for the first time and it fits in the context of school museums. It should be noted that the instruction media didn't fits in the contexts of Classrooms in K-12 schools, Science classes and In higher education institutes.
