What natural element is commonly used as a decorative device in islamic architecture?

Which type of notes dip or blend by a quarter or half step and swoop up to higher pitches to make jazz sound more like a human voice

Ablind girl lost her pencil, book and what did she lose first? (this is really good for people who don't have an adequate amount of points! )

How does viewing byzantine representational art as icons/windows change the interpretations we give them?