Blue tiles (Azulejos) on exterior of Chapel of Santa Catarina (Chapel of Souls), UNESCO World Heritage Site, Porto, Norte, Portugal, Europe

porto azulejos blue tiles portugal historical scenes architecture tourism travel beauty exterior decoration cultural heritage southern europe religious site sightseeing visitors artistry stunning traditional tiles historical significance pattern design landmark heritage tourist attraction church local culture classic beautiful cityscape history vibrant colors scenic exterior view architectural beauty landscapes faith spirituality peace mediterranean european architecture exploration iconic stunning views must see picturesque charm local art community craftsmanship