Porto, Portugal - July 28, 2024 Ancient stone architecture of buildings by the waterfront of the Douro River.
Porto, Portugal - July 28, 2024 Ancient coat of arms on a medieval stone wall in the Ribeira District.
Porto, Portugal - July 28, 2024 Remnants of the medieval fortified surrounding wall of the city.
Porto, Portugal - July 28, 2024 Saint John the Baptist statue on a stone wall of a medieval building in Ribeira Square.
Avila, Spain - February 11, 2023 Arched gate leading to a narrow street, part of the city fortifications in the surrounding wall.
Avila, Spain - February 11, 2023 Merlons in the stone battlements, an architectural feature of the medieval fortified surrounding walls.
Avila, Spain - February 11, 2023 Architectural decorative feature on the arch of a medieval gate, part of the fortified walls of the city.
Avila, Spain - February 11, 2023 Fortified tower that is part of the medieval surrounding wall, an ancient structure and major tourist attraction.
Avila, Spain - February 11, 2023 Semi-circular stone structure that is part of a medieval fortified surrounding wall.
Avila, Spain - February 11, 2023 Stone relief sculpture of San Martin on the facade of the building known as Casa del Caballo.
Avila, Spain - February 11, 2023 Circular large tower of the citys medieval cathedral, viewed from a low angle.
Avila, Spain - February 11, 2023 High section of a medieval fortified surrounding wall against a blue sky.