The red and white circular sign is a Japanese "No Entry" sign. The architectural style, the specific signage, and the Japanese text on the building point clearly to Japan. The density of the buildings and the urban atmosphere suggest a major city like Tokyo. I am quite confident this is in Japan.

Country: Japan
City: Tokyo
Confidence: 80%

then: forward

The sign on the pole clearly says "Kudanshita Station" (九段下駅). This confirms I am in the Kudanshita area of Chiyoda, Tokyo. The architecture and the specific station exit signage match the area near the Yasukuni Shrine and the Nippon Budokan. I have enough information to pinpoint the location.

Country: Japan
City: Tokyo
Confidence: 100%

then: guess