Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Historic Centre of Santa Cruz de Mompox' has mentioned 'UNESCO World Heritage Site' in the following places:
Occurrence Sentence Text Source
The historic center of Mompox was made a UNESCO World Heritage Site in 1995, owing to its preserved colonial architecture and mixture of architectural styles.
From the moment it was declared a UNESCO World Heritage Site, Mompox has been attractive for tourists due to its colonial architecture.