There are two gazebos in the blend file. Units in decimeters. The one in the preview is quite high poly. Second one is less so. Whole scene is 100k+ polygons. Current setup is for night. You could switch to day by disabling moon and lights and enabling sun. Wood texture is from Blender CD and skybox by Emil Persson.
They are both good.
I like the night lighting. I can imagine all kinds of scenes to go around it.