Charles Bridge
The stone bridge begun in 1357 under Charles IV, replacing one a flood had destroyed, and the only fixed crossing here for centuries. The baroque statues along it are later additions and most are copies, the originals having been moved indoors. Cross it at six in the morning if you want any sense of what it is actually like.
Prague Castle
Not a single building but a walled district containing a cathedral, palaces, a basilica and a lane of small houses, and by area one of the largest castle complexes anywhere. It has been the seat of Bohemian kings, Holy Roman Emperors and Czechoslovak and Czech presidents in turn. The continuity of function across that many regimes is the unusual part.
St Vitus Cathedral
The Gothic cathedral inside the castle walls, begun in 1344 and not finished until 1929, which is a gap of nearly six hundred years. The seam is visible if you know where to look: the eastern end is medieval, the nave and west front are late nineteenth and twentieth century, built in deliberate imitation of what came before.
Old Town Square and the Astronomical Clock
The medieval square and its clock, installed in 1410, which tracks not just the hour but the position of the sun and moon and the old Bohemian time. The apostles parading on the hour are a much later addition. The crowd watching them is generally larger than the spectacle warrants, which locals will tell you without being asked.
The New Town
Founded by Charles IV in 1348 as a planned expansion three times the size of the old town, with squares laid out for specific markets. It is where most of the Allied bombs actually fell in 1945. Calling a district founded in 1348 the New Town is the kind of thing that only makes sense in a city this old.
The Jewish Quarter
Josefov, containing several synagogues and the Old Jewish Cemetery, where limited ground forced burials to be stacked in layers and left headstones crowded at angles. What stands is a fragment. Most of the quarter was cleared in a slum-clearance programme around the turn of the twentieth century, decades before the occupation, and the surviving buildings are the exception rather than the rule.
Old-New Synagogue
Completed around 1270 and the oldest active synagogue in Europe, still in weekly use. The attic is traditionally said to hold the remains of the Golem, which is folklore rather than history, and the building's real distinction is simply that it has functioned continuously for over seven centuries through everything that happened around it.
Wenceslas Square
Not a square but a long boulevard, laid out by Charles IV as a horse market. It is where the crowds gathered in 1968 and again in 1989, which makes it the country's political stage rather than a monument. The statue at the top is the assembly point everyone means when they say they will meet at the horse.
Strahov Library
Two baroque halls in a monastery above the castle, ceilings frescoed, shelves packed with books nobody has taken down in a long time. Visitors are generally kept at the doorway rather than admitted to the floor. It is the best surviving example in the city of what a private intellectual world looked like before public libraries existed.
Vyšehrad
The other castle, on a rock above the river south of the centre, with a cemetery holding Dvořák, Smetana and Mucha. Almost nobody visits it. It has the views the crowds are queuing for on the other side of town and a national pantheon attached, and it is a twenty-minute walk from the tourist crush.