REMOVE

1. volcanic ash, lime coating, …
2. mural
3. Fine Arts Museums of San Fra …

WHAT

1. volcanic ash, lime coatin … (2)
2. Architecture (1)
3. Paintings (1)

WHERE

1. Mexico (2)
2. North American; Central A … (2)

WHO

1. Fine Arts Museums of San … (2)
2. Unknown (2)

WHEN

1. 600 (2)
2. 600 - 750 (2)
3. 750 (2)