Cantacuzino Castle and Sinaia Monastery

South of Brasov, the road drops through the Prahova Valley, a string of mountain resorts that grew up around the royal summer court at Sinaia. In the town of Busteni, beneath the great rock walls of the Bucegi massif, stands Cantacuzino Castle, a palace built in the early twentieth century for Prince George Grigore Cantacuzino, a wealthy politician nicknamed Nababul. Its style borrows from the Romanian Brancovenesc tradition, with carved stone arcades, tiled roofs and a broad terrace that looks straight up at the mountains. The grounds have terraced gardens, fountains and statues, and the castle has become a favourite photo stop, partly because film and television crews have used it, and fans know it as the setting of a well-known fantasy school. Tours from Brasov often pair it with Peles Castle and Sinaia Monastery, a seventeenth-century monastery named after Mount Sinai that gave the town its name, which makes for a varied day of royal and religious history.

Busteni lies a little over an hour from Brasov by road, and a single day can include Sinaia Monastery, Peles Castle and Cantacuzino Castle without too much rushing if you start early. The linked small-group tour covers Peles and Cantacuzino together, which is the easiest way to see both if you do not have a car. Independent travellers can take the train from Brasov to Busteni or Sinaia, which is a scenic ride through the valley, and use taxis for the short hops between sights.

At the castle, expect to spend about an hour. Parts of the building and grounds may be open to visitors, and the way the property is used changes over time, so check the current arrangements with the operator before you plan your day around it. The terrace and the garden views are the main reward, and the mountains behind the building make the setting especially photogenic on clear mornings. Paths are paved but include steps, and the area can be cold and damp outside summer, so bring a warm layer.

Sinaia Monastery is worth a short stop for its two churches, its quiet courtyard and its place in Romanian history, as the first monastery in the area and a spiritual landmark for the royal family. Dress modestly and be respectful, since it is an active monastery. Combine all three stops and you get a clear picture of how aristocrats, kings and monks each shaped this valley.

If you only have time for one big day trip beyond Bran, the Prahova Valley is an excellent choice, and the tour format lets you avoid the logistics of changing trains and taxis.

For photographers, the best views of the castle are from the lower terrace and from the garden steps, with the cliffs filling the background. If the weather is poor, the contrast between the grey rock and the warm stone of the building is still striking. Ask your guide about the prince who built it, the later years of the property and the ways it has been used since, because the story is as colourful as the architecture.

Allow time for a coffee or a snack in Busteni before you move on, and keep an eye on the clock so that you reach Peles Castle in good time, since its entry hours are fixed.