In a cobblestone plaza in a European old town, artists sketch and kids play nearb...

In a cobblestone plaza in a European old town, artists sketch and kids play nearby. A man in a long trench coat walks briskly, leash taut. The pet is a dog-sized creature walking on its hands, with feet where its ears should be. Its face is upside-down, smiling, eyes blinking sideways. Its body is wrapped in multicolored fabrics and it emits a soft hum. Tourists freeze mid-photo.