For the purposes of this chapter—
(3) The term “pre-Columbian monumental or architectural sculpture or mural” means—
(A) any stone carving or wall art which—
is the product of a pre-Columbian Indian culture of Mexico, Central America, South America, or the Caribbean Islands;
was an immobile monument or architectural structure or was a part of, or affixed to, any such monument or structure; and
is subject to export control by the country of origin; or
The term “country of origin”, as applied to any pre-Columbian monumental or architectural sculpture or mural, means the country where such sculpture or mural was first discovered.