This document summarizes Europeana, a project that aggregates cultural heritage metadata and content from across Europe and makes it available through their website and APIs. Some key points: - Europeana has over 53 million items from over 4500 institutions in 30+ languages. - While originally envisioned as a linked open data provider, Europeana now focuses more on entity-fication, workification, and knowledge graphs to structure content and improve search and discovery. - Technical challenges include dealing with dirty and irregular source data from various institutions as well as limited tools for cleaning and enhancing metadata. - Moving forward, manual and supervised curation will still be needed alongside tools to aid in tasks like named entity recognition and