Blue and red ceramic tiles. Hexagonal bubbles. Granite squares. Crescent shapes. The unique designs on BART station platforms are a sight to behold. But how good are you at identifying them?

Before BART’s Art in Transit program made an effort to bring art to stations, platform tile and wall designs gave stations their very own signature style.

But they also have practical applications.

These designs help regular passengers clock which station they’re at without having to look for signage. After all, when was the last time you searched for the 16th Street Station sign en route to the Mission? Most passengers look for colors or patterns whizzing outside train windows to figure out their station.

So, let’s test your commuting prowess: How many of these 12 Bay Area BART station designs can you correctly identify? All 12 images below are prominently featured on the platform level of their respective BART station.

Make you guesses in the comments. The winner(s) will receive glory and bragging rights.