These weren't just standard wallpapers; they were curated experiences designed to celebrate the landscapes, architecture, and culture of specific countries. If you lived in the United States, your PC looked like the Great Basin or the Smokey Mountains. If you were in the UK, you got the rolling hills of the Cotswolds.
Most users only ever saw the theme for their own country. However, the OS actually shipped with several sets tucked away in a "Globalization" folder. Some of the most sought-after included: windows 7 regional themes
Microsoft didn’t necessarily "hide" them to be mysterious; it was an effort to reduce clutter. They wanted the user experience to feel tailor-made for the person's home country. By only activating the relevant regional pack, the "Personalization" menu stayed clean and relevant. These weren't just standard wallpapers; they were curated
Many enthusiasts have uploaded the original .themepack files to sites like WallpaperHub or the Internet Archive. Most users only ever saw the theme for their own country
The wallpapers themselves are standard JPEGs. You can simply download the image sets and set them to a "Slideshow" background to recreate the vibe.