If you've ever wanted to feel like Alice down the rabbit hole, take a few hours out of your life and go underground here. You can emerge at any number of downtown spots, from office buildings to the Wortham to the Angelika Film Center. If you're smart, you'll take note of the color-coded parking bars to facilitate relocating your car. But who's complaining? Any underground parking lot search, no matter how long, is preferable to running above ground through a Houston downpour in your theater clothes.