Here's a border (or base, or research facility, or whatever you imagine) checkpoint.
The pack includes 9 variations of the map, all with interior and exterior versions of the checkpoint building. Each variation comes with night/day, and a gridded/ungridded versions for a total of (72 total map images):
This map is 2800 × 1400 px with a 70 px (5') grid (40 x 20 squares).
Kidney Boy's roll20 Marketplace Page
Want to use this art pack in your own published Roll20 module? The Creator of this Art Pack is open to discussing Commercial Licensing for an additional licensing fee. Please use the contact information found in their Creator Profile to inquire.
License: Roll20 End User License Agreement
(Personal Use Only, Do Not Distribute)