The National Mall by Bluebrain

The DC-based electronic duo's just released their first "location-aware album": a mobile app designed to "play exclusively within the boundaries of the National Mall", it'll create an ambient soundtrack with rhythms and melodies that change and evolve based on the user's meanderings, like the addition of horse noises when approaching the merry-go-round, a piano piece changing to a harp when approaching a lake, or terrified shrieks when approaching that group of beautiful women sunbathing, unless worn by Antonio Sabato Jr.