Application.LoadLevel
static function LoadLevel(index: int): void;
static void LoadLevel(int index);
static def LoadLevel(index as int) as void
static function LoadLevel(name: string): void;
static void LoadLevel(string name);
static def LoadLevel(name as string) as void
Parameters

index The level to load.
name The name of the level to load.
Description

Loads the level by its name or index.

Before you can load a level you have to add it to the list of levels used in the game. Use File->Build Settings... in Unity and add the levels you need to the level list there. MonoBehaviour.OnLevelWasLoaded is called on all active game objects after the level has been loaded.
	// Load the level named "HighScore".

Application.LoadLevel ("HighScore");
using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    void Example() {
        Application.LoadLevel("HighScore");
    }
}
import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	def Example() as void:
		Application.LoadLevel('HighScore')

When loading a new level all game objects that have been loaded before are destroyed. If you want to let an object survive when loading a new level, use Object.DontDestroyOnLoad. Calling LoadLevel will update Application.loadedLevel and Application.loadedLevelName. See Also: Application.LoadLevelAsync, Application.LoadLevelAdditive, Application.LoadLevelAdditiveAsync.