Giddy at the discovery of an unexpected fortress, I wasn’t sure what thrilled me more: the Santa Bárbara Castle in Alicante, Spain, or the shocking ease of visiting it. No parking stress, no timed entry, no advance planning—after the over-subscribed venues in Mallorca and Barcelona, the simple act of walking uphill and wandering at will felt almost illicit. The pleasure of exploring a place without barriers, schedules, or crowds amplified every view of the azure sea against the cobalt sky.