leipzig: greenhouses

I spent four months in Leipzig, Germany this year. With these few pictures I start a short series of images of this collage town.
One of the first things that struck me in Leipzig was the amount of greenhouse-like courtyards and patios. Here are a few; above, an old gas works, now a public space and a museum.

One of many in-block passages that are covered with glass roofs (downtown).

The entrance hall at one of the biggest buildings of Leipzig University.