Some cities have taken more care than others to provide good access for both residents and visitors with disabilities. Barcelona is often highlighted as one of the best of the bunch, and visitors to the city quickly notice that public transport, hotels and major attractions have largely been designed (or updated) with disabled visitors in mind. For example Barcelona is one of very few cities where 100% of its buses are accessible; most metro stations (including all those recently built or redeveloped) also have wheelchair access. See this story from Catalan News Agency for more details, and check out the hand-picked selection of Barcelona hotels used by Can Be Done Holidays.
Mind you, one wheelchair user took his freedom to ride on Barcelona’s street a little too seriously – this video of him weaving in and out of the city’s traffic has taken the internet by storm.