amersfoort medieval town wall koppelpoort and the eem river

ambiance amersfoort amsterdam ancients architecture attraction attractions attractive blue boulder bridge building castle centre city cityscape curiosity destination destinations dutch eem eempolder fortification fortifications fortress gate historic historical history holiday holland houses idyllic interest interesting keistad koppelpoort landmark medieval monument monumental natural nature netherlands nostalgia nostalgic old outdoor place places reflection representative river rivers riverside ruin ruins scene scenery scenic sky tour tourism tourist touristic tower towers town travel traveling trip typical typically urban vacation vintage walls water