The Donauinsel: the river island and the Donau City skyline
A 21-kilometre recreation island, the city's only real skyline, and the UNO-City towers across the water. This is a Claude-drafted route awaiting the editor's walk.

1. Donauinsel station
The U1 stops on the *Reichsbrücke*, mid-river, with a stairway straight down onto the island. Step off and the water is on both sides of you at once — Danube to the west, New Danube to the east.

2. The Donauinsel
A 21-kilometre sliver of land built as flood defence and used by the whole city as a beach. Walk the paved path along the water; in summer it's swimmers, cyclists, and barbecue smoke, and you can stop wherever you like.

3. The Copa Beach waterfront
The reworked riverside strip on the island's east bank — bars, swimming spots, paddleboards. It's brashest in high summer; the rest of the year it's just a good place to watch the water and the towers opposite.

4. The Reichsbrücke crossing
Cross back east on the *Reichsbrücke* toward *Kaisermühlen*. The bridge gives you the whole composition at once — the island behind, the skyline ahead, the river underneath.

5. The DC Tower & Donau City
Austria's tallest building anchors a cluster of glass towers on the river's east bank. There's no old Vienna here at all; it's the one corner of the city that looks forward, and worth twenty minutes for exactly that reason.

6. Vienna International Centre (UNO-City)
The curved 1979 UN complex — one of the city's four UN headquarters worldwide. You see it best from the outside and from across the water; end the walk at *Kaisermühlen-VIC* right beside it.

The Donauinsel: the river island and the Donau City skyline