Lebensalter, Public fountain at Wittenbergplatz, Berlin, Germany.

Lebensalter is the southern fountain at Wittenbergplatz, designed by Waldemar Grzimek and completed in 1985. Its basin measures 16 by 15 metres, framed by light grey granite blocks, with a floor of coloured boulders and rough-hewn stones. A five-metre oval mushroom form of steel clad in copper rises above nine bronze figures up to 2.30 metres tall, mostly in pairs, plus two children with a dog and two abstract forms.

The fountain was completed in 1985 as a collaboration between artist Waldemar Grzimek and sculptors Christian Höpfner and Hartmut Bonk. Since its creation, it has remained a permanent fixture that defines the character of the square.

The south fountain's theme, "Die Lebensalter" (The Ages of Life), is staged as a walkable scene: nine bronze figures of different ages, mostly in pairs, plus two children with a dog, stand openly among the water rather than behind a basin rim. Two abstract bronze forms at the north corners, based on Grzimek's sketches and cast by Fee Franck, represent the female and male principle as an ironic summary of the theme.

The south fountain's basin measures 16 by 15 metres and is open to walk through, so visitors can step among the bronze figures rather than view them from behind a rim. The north fountain, 11 by 11 metres, lies on the opposite side of the U-Bahn station, so allow time to see both.

The water's movement and sounds shift throughout the day and with weather conditions, giving the installation different moods at different times. Many visitors only notice these subtle changes after visiting multiple times.