The murals, showing a deer caught in a net, are considered the oldest murals in the Americas.

The rise of graffiti continued even after the regime stepped down. Artists took it to a different level, and thought that murals could be a way to commemorate the revolution's martyrs.

And when you can do stuff like this These are my kids putting in this technology, and when you can build a roof that looks like that on a house that looks like that with sedum that looks like this, this is the new green graffiti.

Remember, this tradition comes to us not from the mists of Avalon, back in time, but further still, before we were scratching out these stories on papyrus, or we were doing the pictographs on walls in moist, damp caves.

This is largely thanks to its graffiti artists, whose brightly colored murals are popping up all around the city.