Prague Castle is not a single building but a hilltop town: courtyards, palaces, a cathedral, lanes and gardens spread along the ridge above Malá Strana, with the whole city laid out at its feet. Enter through the main gates on Hradčanské náměstí, where the ceremonial guard stands, and take your time crossing the courtyards — the scale only becomes clear when you turn and look back down over the rooftops toward the river.
For your map, the address is Pražský hrad — III. nádvoří, 119 00, Hradčany, Praha 1, and the complex rewards a proper wander: the Third Courtyard, the Old Royal Palace, and the tiny brightly painted houses of Golden Lane, where goldsmiths and later souvenir-sellers worked inside the line of the old fortification wall. Buy tickets ahead on
www.hrad.cz or at the on-site ticket offices, and note that last entry is shortly before closing time.
Mid-morning is ideal here. The courtyards are still manageable, the light on the cathedral's south facade is at its best, and you've ticked off the trip's biggest set-piece while everyone is still fresh. Most of the complex is outdoors and exposed, so if the forecast is damp, do the cathedral first and the courtyards between showers.