Going from Plac Zbawiciela you can find the Globetrotter Hostel on the left hand side of Aleja Wyzwolenia. Just look for the 3 rd door of the long tenement house. There is a lift in the building on your left hand side!
from Dworzec Centralny, the Warsaw Central railway station:
#131- from the bus terminal (Dworzec Centralny)which is next to the railway station there are 4 bus stops to the "Metro Politechnika" bus stop.
#501&519- from the bus terminal there are 3 stops to the "Metro Politechnika" bus stop.
At night the buses N37 and N81 leave from the Central Station bus terminal. Just look for the stop called "Metro Politechnika" and remember that at night buses stops only on demand.
#10 - the stop is on Al. Jana Pawla II (going through the underground from the railway station look for the direction "Mokotow"), there are 4 stops to "Metro Politechnika" tram stop
If you want to take a walk we suggest going along Aleje Jerozolimskie and then turning right into ul. Marszalkowska Walk until you reach Plac Zbawiciela. Then you need to turn left into Aleja Wyzwolenia . The stroll takes about 20 minutes
from Warsaw Chopin Airport (WAW) airport:
#188- this bus will take you from the bus terminal at the airport to "Marszalkowska" bus stop where you need to get off. It takes about 22 minutes (not including heavy traffic). When you get off just walk up the stairs and turn right. Then walk to Plac Zbawiciela and turn right.