I’m always wondering how many days you need to see Transylvania. The answer is as simple as it is complicated: as many as you need or as many you as have. Two days tour is possible too short, 7 days can be too long. For this reason I designed a tour that gives to the tourist interested to see the essential places of Transylvania in 4 days: http://sibiutourguide.com/complete-transylvania-tour-private-guide.html
The tour can start in Bucharest, but the optimal starting point is Sibiu, due to its location in the heart of Transylvania (and the local airport has very good connections with Munich, London or Vienna). The hub for exploring Transylvania can can be Sibiu or Brasov, as from those cities is easy to reach the most popular touristic attractions of this part of Romania. And the charming set of the medieval old towns of Sibiu and Brasov is also an important element to take into account when the travel plans are made. If you decide to start in Bucharest, you have to take into consideration the option to finish the tour in Sibiu or Cluj, so you can save half a day that you would otherwise lose on the road back to the capital of the Romania.
So, the introduction being made, what are the places not to be missed when visiting Transylvania? First the castles: Bram Stoker’s Dracula made Transylvania a top destination on the touristic map of the world, so the castles are coming first on the list. The best known is Bran Castle, due to it’s links with Dracula, but the truth is that Dracula never lived there, as Dracula is a fictional character! But there is another castle, less known as Bran Castle, however much more impressing and important: the Corvin (Hunedoara) Castle. You will need two days to visit the 2 castes, and the best place to do this is from Sibiu, located at almost equal distance between them. Number 3 on the list is Peles, not because is less important, but because, if you have seen Bran and Corvin, you will not consider Peles a castle. In my views, Peles is a palace, and in term of architectural richness, elegance, originality, history, preservation and background scenery is the first touristic attraction of Romania. And, if we want to be very strict, Peles is not in Transylvania, but is just a few kilometers south from the former border with Wallachia.
Then, there are the cities. I mentioned before Sibiu and Brasov: vibrant cultural cities, with romantic squares and rich history in their CV. We have to add to the list Sighisoara, a charming medieval town, listed on the UNESCO World heritage list, which has preserved basically untouched its medieval walls and defense towers. Add to this the pastel houses and the cobbled streets and you have the perfect recipe for enchantment. I usually visit Sighisoara, when I’m on my way to Sibiu from Brasov or vice versa. I don’t recommend to spend a night there, if you are in a hurry as 2 or 3 hours can be enough to explore the citadel. If you are on extended visit to Transylvania, you can add to the list Alba Iulia ( due its extremely important significance in Romanian history and the Vauban fortress) and Cluj ( the largest city in Transylvania).
The fortified churches: an unique architectural phenomenon that appeared due the geographical and historical circumstances of Transylvania in 15th-16th century. There are around 150 villages with fortified churches, spread around Transylvania, and 7 of them are listed on UNESCO World Heritage list. I will not recommend to see all of them, if you aren’t an architecture and medieval enthusiast, but I strongly recommend to see at least Prejmer, Biertan or Viscri. All of them are near Brasov, Sighisoara and Sibiu, so is not difficult to put them on the travel map.
The landscape: mountains, countless flock of sheep, horse driven carriages, rolling hills, remote villages lost in the past, lofty fortresses, this is Transylvania! A must do experience is to drive on Transfagarasan, the mountain road that connects Transylvania with Walachia, over the Carpathians mountains. In summer time, Transfagarasan can be an alternative to drive to Bucharest, if the plan is to leave Romania from the capital city.