Zijlpoort - Leiden
National monument the Zijlpoort dates from 1667 and is built in Classicist style. The gate takes its name from the nearby river Zijl. The predecessor of this gate was at the end of the Haarlemmerstraat, where now the Havenplein is located. The Oude Rijn flows into the city of Leiden along the Zijlpoort.