Research Centre for Theory and History of Science is located within the historical center od Pilsen. You can reach Pilsen by plane, train or bus.
By plane:
The nearest airport is in the capital of Czech republic: Václav Havel Airport Prague. To get to Pilsen, you can use bus no. 100 to Zličín station and then Student Agency bus to reach Pilsen's Central Station (CAN).
By bus:
If you travel by bus, you can use Student Agency service with departures from many european cities.