My son & I discovered Danny MacAskill via his film Way Back Home (on Netflix). As a long-time avid mountain biker, I have a particular respect for trials riders. The first rider who impressed the heck out of me was Hans Rey . Anyway, Danny's riding is urban-centric, which really gels with me. Anyway, below is the YouTube bit that launched Danny. Give it a look. You won't be disappointed.
Another Seattle Based Tech Worker