Whether it's remembering where you parked the car, or just finding the light switch in the morning, navigating your busy world can be tough. Luckily your brain has a built-in navigation system to help make sense of your surroundings. In fact, recent discoveries prove that the brain uses place cells and direction cells to help get us to where we're going. In this episode we explore spatial awareness. It's how your brain tells you where you are. Through a series of games and experiments we’ll test the boundaries of your brain’s hardwired sense of direction, and prove how you aren’t always aware of your surroundings or even your body. Plus you’ll learn a surprising technique to enhance your spatial memory.

• Neil Patrick Harris
• Keegan-Michael Key
• Cara Santa Maria