A friend told me about the Banksy Tunnel in London where the street artist Bansky was commisioned to do some work. This under pass located just around the corner from the Waterloo underground station is fucking awesome, and a must see for any tourist to London. It is a graffiti zone where hundreds of artists have exhibited thier skills. This is not a popular destination though so few people know of it. To find your way to the Bansky Graffiti Tunnel, go to the Waterloo station, take a right when you get out and head to Lower Marsh Street. Stick to the right side of the street and look for an underpass about 22 meters in. You cant miss it.