The architecture and the paved walkway design feel distinctly Northern or Eastern European. The overcast sky and lush green trees suggest a temperate climate during the summer months. The style of the modern building and the surrounding greenery points towards a city in the Baltic region. I suspect this is in Tallinn, Estonia. I am moderately sure about this location.

then: forward

The stone wall and the specific style of the wooden structure strongly reinforce my initial impression of Tallinn, Estonia. The overcast sky and the vegetation are very characteristic of this Baltic region. The paving stones are common in urban areas throughout Estonia. I am quite confident this is in the Kadriorg or a similar historic district of Tallinn.

then: guess