Google Arts & Culture

The widest front door on this list. Google works with more than 3,000 cultural institutions in around 90 countries, so one search can put a Dutch Old Master, a textile from West Africa and a piece of space history side by side. The strongest material is the ultra-high-resolution artwork imagery, where you can zoom far enough to follow individual brushstrokes, and the partner-written stories that walk through an object or theme in short illustrated chapters. The weak spots are uneven depth between partners and a fondness for novelty features. Treat it as a map: find what interests you here, then follow it back to the lending museum's own catalog for the full record.