The Old Library and the Book of Kells is a must see for every wheelchair traveller out there while visiting Dublin.
The Book of Kells is located in the heart of the city, so you will roll through a few cobbled stones of Trinity College to get there but that's not a massive problem.
I rolled myself up to enter through the Library Shop and proceeded to the Book of Kells "Turning Darkness into Light" exhibition; then to the Treasury where the Book of Kells and other related manuscripts are on display. Next I move upstairs to the magnificent Long Room which houses 200,000 of the Library’s oldest books in its oak bookcases.
The library was the most impressive and I was happy to see elevators in a old building like that. The elevators were a bit tight for my wheelchair but it's pretty doable with a manual-average-size wheelchair.
That was a lovely member of the staff that accompanied me, she was explaining me the history behind the book of Kells while guiding me to the first floor Long Room Old Library. Super helpful and friendly staff.
It is fully wheelchair accessible but I think space gets a bit tight when you enter the bookshop, and as it gets pretty crowded, I highly suggest you roll your way there early in the morning, just to avoid the crowd and the long queues.