Zielona Brama or Grünes Tor
This magnificent four-arched gatehouse on the waterfront was built as a palace for Polish monarchs. No Polish king ever stayed in the building, but Lech Wałęsa had his office here before moving to the European Solidarity Centre. The gate leads to the Green Bridge, which spans the Motława River and which used to be raised to stop the riff-raff from getting into the Old Town. Following a careful renovation the gate now bears an uncanny resemblance to Amsterdam's central train station, and hosts an art gallery and the Gdansk Photo Gallery.