How to make Camera look at object Continuously in SplainController Script

Hi, m using SplineController Script and attaching it to my camera,Actually Camera is moving around a building and i want camera to look at building Continuously during its movement. Right now camera is looking straight… i don’t know how to modify in this script to do so…plz help

using UnityEngine;
using System.Collections;

public class LookAt : MonoBehaviour {
	public Transform target;
	// Update is called once per frame
	void Update () {

You just have to assign this script to the camera and the building as the target and it will automatically look at it, if you want a specific spot at the building you could place an empty gameobject at that position and assign it instead. For me it worked like this.