Why is Porto so Captivating?

I got out of Porto’s underground Metro and was instantly blinded by the sun. It was the first time I’d seen that kind of blue sky and sunlight – the kind that held no promise of rain – in almost a week. After over a month traipsing through France’s Brittany and Northern Spain, I was feeling a little tired of traveling, but Porto a refreshing change. It felt rejuvenating and I couldn’t wait to explore more.