Barcelona is not a one-time destination. Each visit reveals a new layer of the city, especially if you allow yourself to step beyond the tourist checklist. Whether your interests lie in art ...

Keep in mind that no matter what time of the year you'll visit, there will be other tourists: Barcelona is the most-visited city in Spain ... before the summertime tourist rush.

That morning, one of its guides ... the Europe travel specialist at U.K.-based tour company Red Savannah, can custom-design a Barcelona itinerary with a focus on responsible tourism.

Planning tours to Spain? Here’s what you need to know as Spain enforces stricter measures to manage overtourism.