Utrecht is one of the oldest cities in the Netherlands. The Romans built a fort here around 50 AD to guard a crossing of the Rhine, in 695 the missionary Willibrord made it the seat of a bishop, and in the Middle Ages it was the religious capital of the northern Netherlands, a city of bishops with a cathedral tower so tall it's still the highest church tower in the country. Then, on 1 August 1674, a violent storm tore down the cathedral's nave, which had never been properly finished or buttressed. It was never rebuilt, and that's why the Dom Tower stands alone, with a square where the church should be.
Today it's the fourth city of the Netherlands, a university town of about 378,000 people, and many Dutch people's favorite. Its main canal, the Oudegracht, is unique: the medieval quays and cellars sit at water level, a story below the street, and in summer they fill with café terraces right by the boats. It's calmer and more lived-in than Amsterdam, and it sits at the center of the Dutch rail network, which makes it the perfect base for five days.
Day one is the Dom and the old center, day two the museums and the Rietveld Schröder House, day three Castle De Haar and the forests of Amelisweerd, day four Van Gogh and the heathland of the Hoge Veluwe, and day five the markets, the canals and a farewell evening. Most museums close on Mondays, so if your stay includes one, make it day three, and put day five on a Wednesday, Friday or Saturday for the market. Amersfoort, Gouda and Haarlem come after day five. For the bigger picture, see our page on the Netherlands.