The Basiliskenhaus or House of the Basilisk at Schönlaterngasse, is telling us the famous Viennese legend.

In 1212 a baker named Garhibl used to live in the the house at Schönlaterngasse 7. When his maid went out to the well to fetch some water, she was horrified by a pair of glistering eyes staring at her from the bottom of the well, and the air was filled with a sickening smell. The baker's apprentice was let down on a rope - and was nearly shocked to death. Down in the well sat a Basilisk, a horrible figure in the shape of a rooster, with scaled tail, legs filled with warts, glowing eyes and a crown on his head.

When they asked a wise man about this monster, he told them it was a Basilisk, hatched from the egg of a rooster, breeded by a toad. Its foul breath was lethal and it could only be killed by pointing a mirror towards its eyes.

The apprentice did so at once. The Basilisk had been so horrified by his own appearance, he shouted out loud in disgust and suddenly burst from anger. The well was then immediately filled up with stones and earth.

The apprentice, who had long been denied to marry the baker's daughter finally got his way. As a celebrated hero who had saved the people from the Basilisk, the baker could do nothing but agree to the marriage.
English by Leeb Translation Services Wien, original German source: Wikipedia

The building painted in red, to the right, once had a famous inhabitant: Robert Schumann, between October 1838 to April 1839.