This is "A Road in the Roman Campagna" by Eugène-Ferdinand Buttura. Painted around 1840, it's a beautiful example of Italian Romanticism. The artist was actually staying at the Villa Medici in Rome when he created this piece.
Notice how the scrubby trees line the roadway, creating a sense of depth and atmosphere. And look closely at the gulley running along the edge - it's just a single curving line of paint, but it really captures the dry, arid feel of a Roman summer's afternoon.
Buttura was fascinated by the landscape of Italy, and his paintings often reflect that interest. This one is no exception - the way he uses light and shadow to create a sense of space is really quite striking.
A Road in the Roman Campagna hangs in The National Gallery on Trafalgar Square, London — free to enter. Point your phone at any artwork there and audioguide.london plays a free audio guide in six languages — no app download needed.