Combining Math and Travel: Any Unique Ideas?

I’ve always loved how math shows up in unexpected places, and lately, I’ve been wondering how to weave it into my travels. Has anyone found cool ways to explore destinations through a mathematical lens? Maybe visiting architectural marvels with geometric designs, or tracking historical trade routes using old calculation methods? I’d love to hear if you’ve stumbled on hidden patterns, unique tours, or even local math-inspired art while traveling. Open to all kinds of suggestions even if it’s just a great bakery with fractal-shaped pastries!