Roughly halfway Gottgetreu and Prag lies Terezin (Theresienstadt). In WWII the city had a Jewish ghetto and a transit- and concentration camp. The musea and exhibitions are very impressive and can be followed in english. In 2019 a paper guide cost 5kr. = app. €0,21. A substantional part of the fortress is free accessible. I advise to reserve a complete day to visit the full complex. A serious visit to the ‘small fortress’ alone takes at least two hours. The city Terezin is situated near the highway, but can be reached from Gottgetreu without using the highway. A vignet cost in 2019 310kr. Please be aware that buying the vignet can take some time. The personnel is, to put it mildly, unfriendly and not interested in selling vignets.