The indigenous peoples of what continent built this mosque?

Which two religious groups claim an important event happened in their faith’s history at this one location where this famous structure was built?

Geometry

Of what treasured stone was this mask made?

Name this most famous domed structure.

What religous group built these?

Impromptu

Name this item that was used instead of walls to define interior space.

Serendipity

For what purpose did the Ancient Japanese originally use this piece?