What architectural feature does the Temple of Hera at Olympia and the Parthenon share?

The Temple of Hera at Olympia and the Parthenon share the feature of having a peripteral design. This architectural layout is characterized by a single row of columns that encircles the building, offering a sense of openness and providing a covered walkway to visitors.

The Temple of Hera, an early example of Greek temple architecture, showcases a simple peripteral arrangement, which later influences more sophisticated designs. The Parthenon, completed in the 5th century BC as a part of the Athenian Acropolis, also employs a peripteral design, but with advanced refinements and proportions characteristic of the Doric order, further enhancing its aesthetic qualities.

In both cases, the peripteral design serves not only structural functions but also embodies the ideals of classical beauty and harmony prevalent in ancient Greek architecture. This architectural feature is significant as it reflects the cultural focus on symmetry and the relationship between the building and its environment.