From here you can narrow it down to specific needs. I suggest a wide angle zoom 18 mm - 55 mm ($119.95) - Don't let the low price fool you. This is a high quality Nikon lens.
Another option is the 16 mm - 85 mm lens ($699.95). Wider than 16 mm will create noticeable edge distortion and fish-eye effect.
For extreme wide panoramas use a tripod and take several shots and stitch them together.
From here you can narrow it down to specific needs. I suggest a wide angle zoom 18 mm - 55 mm ($119.95) - Don't let the low price fool you. This is a high quality Nikon lens.
Another option is the 16 mm - 85 mm lens ($699.95). Wider than 16 mm will create noticeable edge distortion and fish-eye effect.
For extreme wide panoramas use a tripod and take several shots and stitch them together.