Versiunea română aici.
To get to Sibiu from Bucharest you need to follow the A1/E81 to Piteşti (115km), pass on the newly built ring road and continue on the E81 to Râmnicu Vâlcea (68km), Cozia (17km) and finally Sibiu (90km), for a total of about 200km. The road is quite good, except for some parts of Dealu Negru where the road has collapsed and is currently being rebuilt. From Cozia to Sibiu there are another 100km of not-so-good roads. There are also some sections where the circulation takes place on 1 lane, controlled by traffic lights.
The trip takes about 4 hours without speeding. You could probably do it in 3h15-3h30 with a radar detector.
If you go by train, the trip takes about 5h30 and costs from 45 to 60 lei.
Accomodation in Sibiu is expensive and quite bad. I can’t really recommend any place, except the Old Town Hostel. It would be much better if you searched for hosting in the villages near Sibiu. You could try getting some hosting from Antrec, the Romanian branch of Eurogites.
What to see
The pedestrian area of Sibiu is interesting. You can see numerous old houses from the 16th and 17th centuries. Piaţa Mare and Piaţa Mică (The Big and Small squares) are linked by small streets and stairs. In the same area you can find the famous Podul Minciunilor (The Liars Bridge).
All the city’s museums are there: the Bruckental Museum, the historical museum, the Lutheran Church, etc. The Towers and citadel, which limit the old town are also nice to visit.
If you’re in town for a little longer, you might want to visit the Astra Museum, near Sibiu.
From Râmnicu-Vâlcea you can go left in DN67 to Târgu Jiu and visit some monasteries and some caves.