The Naschmarkt has been around since the 16th century and it is the most popular market in Vienna. It is at the Wienzeile over the Wien River. 
It is made up of about 120 market stands, plus some small restaurants, and stretches about 1,5 km (almost a mile) long.
In 1793 this is where all of the fruits and vegetables were sold in Vienna that had come by cart. 
Today you can get spices, fruit, vegetables, cheeses, and other culinary goodies from across the world.
On Saturdays it is also home to a flea market.
The Naschmarket is a great place to go shopping, have a coffee and slice of cake, or to sit back with a glass of wine and just people watch.
In Vienna, a single metro ticket costs €2,40. Or you can by a 24-hour pass for €8. I love that public transportation is so much cheaper in Brno.
Another great option in Vienna is to just buy an Einkaufskarte (shopping card). It costs €6,10 for unlimited rides. The only catch is that the ticket is only valid from 8 am to 8 pm, Monday to Sunday.