What does the UNESCO database provide information about?

The UNESCO database specifically aims to provide information about national laws that protect cultural heritage. This resource is essential for various stakeholders, including countries, institutions, and individuals involved in the preservation and protection of cultural heritage. By giving access to legal frameworks, it helps in understanding how different nations approach the safeguarding of their cultural assets, thus fostering better cooperation and compliance in international contexts.

In contrast, the other options pertain to areas outside the database's focus. The database does not detail international art sales and trade, list contemporary artists, or provide market prices for cultural artifacts. Instead, its primary role is ensuring that laws regarding cultural heritage are documented and accessible, reflecting how diverse cultures value and protect their historical and cultural legacies.