You were walking around Red Square in Moscow, taking pictures of the monuments around you. The air was icy cold at -22°C, but you kept exploring the area. As you wandered further, you noticed an open door leading to another square. Curious, you walked through it.

The eerie part was that no other tourists seemed to be around. Suddenly, you felt a strong hand grab your arm. Startled, you turned to see a Russian policeman wearing a ski mask. His eyes were wide with disbelief as he stared at you.

"Что ты тут делаешь?!" (What are you doing here?!)

You instinctively pointed back toward the door you had just entered, but when you looked, it was closed. A sinking realization hit you: you were now inside the Kremlin square.