Hidden Alleyways in Brussels

I flew into Amsterdam today, hopped on the Thalys train to Brussels, and have spent the afternoon exploring with one of Brussels' greeters. This is such a cool thing that is now in several cities around the world, like the Big Apple Greeters in New York. Basically, they volunteer their time to show visitors around and you get some great insight into a new city. I loved this hidden alleyway she walked us through. The red brick building on the right with iron rods on the window is a former jail. Below is a snapshot of how homes were identified before there were numbers - "Look for the rooster!"