Five new reflections

From Japanese signs and canal to art, communications tower and harbour architecture.

Walks

1. Little Tokyo: Immermannstraße
2. Triton Fountain and Königsallee
3. K21: Ständehaus
4. Rhine Tower
5. Gehry Buildings: Neuer Zollhof

Who makes a city: rulers, residents, water or new ideas? Find the answer in ten observations.