Lake Kozjak inside Plitvice Lakes National Park during autumn, UNESCO World Heritage Site, Croatia, Europe

travel destination photography horizontal colour image outdoors unesco unesco world heritage site international landmark famous place day europe croatia croatian culture national park autumn plitvice lakes national park reflection lake kozjak lake scenics landscape physical geography non urban scene tranquil scene tranquillity tree water no people beauty in nature colour image colour color image color outside tourist destination travel nobody no one no one landmark place of interest topography scenery scenic scene scenes picturesque tranquility serene serenity peaceful reflecting reflected natural beauty unesco world heritage site unesco world heritage sites unesco world heritage site world heritage sites typically croatian croatian culture traditionally croatian traditionally croatian europe european