If you’ve ever spotted a McDonald’s with turquoise or bluish arches instead of the classic golden yellow, you’re not imagining things — and yes, there’s a real reason behind it.

In Sedona, Arizona, McDonald’s was forced to change its famous golden arches to a blue-green color. The reason? Local city regulations. Sedona is known for its stunning red rock scenery, and the town has strict rules to protect its natural beauty. Officials decided that bright yellow clashed with the surrounding desert landscape. So, McDonald’s agreed to make a special turquoise version to blend in better with the environment.

It became the only McDonald’s in the world with blue arches — and one of the most photographed spots in the area. Visitors from around the globe stop just to take pictures of it.

So next time you see a McDonald’s sign that isn’t yellow, remember: it’s not a mistake — it’s a one-of-a-kind symbol of how even the biggest global brands have to adapt to local rules.