The same puddle as the arch, turned the other way, less than a minute later. The Colosseum sits low in the frame so the reflection can have the bottom half, and the two pines do the composing; without them it is a car park with a ruin at the end of it. The one person in the frame is small enough to miss, which is rarer here than the photograph makes it look.

The Colosseum, in a Puddle
Rome, Italy · December 2019
1D X Mark II, 24 millimetres, f 8, 1/125 of a second, ISO 500