The National Museum has 11 branches in Kraków, with this monolithic structure - apparently built over the course of half a century from 1935 to 1989 - being the main administrative branch and landing spot for the institution's most ambitious exhibits. Permanent exhibits include the Gallery of Weaponry & Uniforms, Gallery of Decorative Arts and the excellent Gallery of 20th Century Polish Art ('The Situation Has Changed'). Despite the virtue of each, it's the consistently excellent temporary exhibits that should lure you here. Currently you'll find a high-profile exhibit on local son Stanisław Wyspiański (whose epic monument stands outside the entrance) - one of the most important artists of the turn of the 20th century. The main branch also currently exhibits one of the museum's most cherished treasures - Leonardo da Vinci's famous oil painting Lady With an Ermine; beloved by locals, the painting is displayed in its own separate room, to which visiting is limited to 20 individuals at a time and a separate ticket is required (20/15zł). One of Kraków's largest museums, you'd be wise to focus on what you're most interested in; to see it all would take the entire day. The museum also houses a small shop and cafe.