A "landmark zone" shows up on a transparent block to show you where you can construct a landmark. The longer your plan, the more landmark zones you'll see. At most you'll see 5 landmark zones within a 30-day plan.

There are three kinds of landmark zones:

1. Standard - you'll see an exclamation mark on a transparent block, indicating that you have not yet earned the landmark
2. Telescope - You'll see a telescope icon on a flashing transparent block, indicating that you're elligible to claim a new landmark
3. Sparkle - You'll see a flashing transparent block, indicating that you can construct a new landmark