Rijksmuseum, Amersterdam

Amsterdam's Rijksmuseum is the largest museum of art and history in the Netherlands. Known for its collection of Dutch masters, the museum is home to twenty works by Rembrandt, including "The Night Watch." The museum's website gives visitors lots of choices for exploring its collections, by artist, by theme, by subject matter, etc. Its most famous pieces are grouped together in an online "masterpieces" collection. With impressive special exhibition pages and stunning photographs of its holdings, the Rijksmuseum's home on the web is truly awe inspiring.