Low Hanging Cloud

 

At first glance, I thought that this was a photographic error - some light crept into the lower half of the slide film. But, on closer examination...No! it's some low-hanging, dense cloud.

On the slide was the word "Sani", and while it doesn't scream "Greece" to me, it's the best guess of a location that I can give.

Bonus - “What’s the process to add additional presidents to Mount Rushmore?”, a Trump admin official reportedly asked. — Sculpture of Donald Trump’s face carved into Mount Rushmore has been pictured at his office in Mar-a-Lago