glEnable(GL_DEPTH_TEST) issues

#include "stdafx.h"
#include <GL/gl.h>
#include <GL/glut.h>
 
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
 
 
// The one and only application object
 
CWinApp theApp;
 
using namespace std;
 
void setMaterial(float ambientR, float ambientG, float ambientB, float diffuseR, 
float diffuseG, float diffuseB, float specularR, float specularG, float specularB, float shininess)
{
	float ambient[] = {ambientR, ambientG, ambientB};
	float diffuse[] = {diffuseR, diffuseG, diffuseB};
	float specular[] = {specularR, specularG, specularB};
 
	glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, ambient);
	glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, diffuse);
	glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, specular);
	glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, shininess);
}
 
void display()
{
	//Clear the window
	glClear(GL_COLOR_BUFFER_BIT);
	//Future matrix manipulations should affect the matrix model view
	glMatrixMode(GL_MODELVIEW);
	//Draw scene
	glPushMatrix();
 
	//house
	glPushMatrix();
	setMaterial(0.0, 0.5, 1.0, 0.0, 0.5, 1.0, 1.0, 1.0, 1.0, 1);
	glutSolidCube(2);//building
	glTranslatef(0,1,0);
 
	glPushMatrix();//roof
	glRotatef(-90,1,0,0);
	setMaterial(0.0, 0.5, 1.0, 0.0, 0.5, 1.0, 1.0, 1.0, 1.0, 50);
	glutSolidCone(1.5,1,16,8);
	glPopMatrix();
 
	glTranslatef(.75, .5, -.75);//chimney
	glPushMatrix();
	glScalef(1,3,1);
	setMaterial(1.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1);
	glutSolidCube(.25);
	glPopMatrix();
	glPopMatrix();
 
	glTranslatef(0, -.65,2);
 
	//car
	setMaterial(1.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1);
	glPushMatrix();
	glPushMatrix();
	glScalef(2,.5,1); //body
	glutSolidCube(.5);
	glPopMatrix();
	glTranslatef(0,0,.25);
	glPushMatrix();
	glTranslatef(-.4,-.2,0);
	glutSolidTorus(.05, .1,8,8); //left rear wheel
	glTranslatef(.8,0,0);
	glutSolidTorus(.05, .1,8,8); //left front wheel
	glPopMatrix();
	glTranslatef(0,0,-.5);
	glPushMatrix();
	glTranslatef(-.4, -.2,0); 
	glutSolidTorus(.05, .1,8,8);//right rear wheel
	glTranslatef(.8,0,0);
	glutSolidTorus(.05,.1,8,8);	 //right front wheel
	glPopMatrix();
	glPopMatrix();
	glPopMatrix();
	glFlush();
}
 
 void reshape(int w, int h)
 {
	 //define viewport transformation
	 glViewport(0,0,w,h);
 }
 
int _tmain(int argc, char* argv[], TCHAR* envp[])
{
	int nRetCode = 0;
 
	// initialize MFC and print and error on failure
	if (!AfxWinInit(::GetModuleHandle(NULL), NULL, ::GetCommandLine(), 0))
	{
		// TODO: change error code to suit your needs
		_tprintf(_T("Fatal Error: MFC initialization failed\n"));
		nRetCode = 1;
	}
	else
	{
		//init glut w/commanf line params
		glutInit(&argc, argv);
		//setup the size, position and display mode for new windows
		glutInitWindowSize(500,500);
		glutInitWindowPosition(0,0);
		glutInitDisplayMode(GLUT_RGB|GLUT_DEPTH);
 
		//create and setup the window
		glutCreateWindow("hello, Weird Thingy 3!");
		glutDisplayFunc(display);
		glutReshapeFunc(reshape);
 
		//Enable depth buffering
		glEnable(GL_DEPTH_TEST);
 
		//setup lighting
		glMatrixMode(GL_MODELVIEW);
		glLoadIdentity();
		float lightpos[] = {0.0, 15.0, 15.0};
		float lightcolor[] = {.5, .5, .5};
		float ambcolor[] = {0.2, 0.2, 0.0};
		glEnable(GL_LIGHTING);
		glLightModelfv(GL_LIGHT_MODEL_AMBIENT, ambcolor);
		glEnable(GL_LIGHT0);
		glLightfv(GL_LIGHT0, GL_POSITION, lightpos);
		glLightfv(GL_LIGHT0, GL_AMBIENT, lightcolor);
		glLightfv(GL_LIGHT0, GL_DIFFUSE, lightcolor);
		glLightfv(GL_LIGHT0, GL_SPECULAR, lightcolor);
 
		//define the projection transformation
		glMatrixMode(GL_PROJECTION);
		glLoadIdentity();
		gluPerspective(40, 1, 4, 20);
 
		//define the viewing transformation
		glMatrixMode(GL_MODELVIEW);	  
		glLoadIdentity();
		gluLookAt(5.0, 5.0, 5.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
 
		//tell glut to wait for events
		glutMainLoop();
	}	  
	return nRetCode;
}