BARCELONA, Spain (AP) — Tens of thousands of Spaniards marched in downtown Barcelona on Saturday to protest the skyrocketing cost of renting an apartment in the popular tourist destination.

Spain is planning a raft of measures to address its brewing housing crisis, including an up to 100% tax on properties bought by non-European Union residents.

Catalonia was the first region to apply those caps, which are in place in downtown Barcelona. Many locals blame the million of tourists who visit Barcelona, and the rest of Spain, each year for ...