Burgerman wrote:But the advertise it as disabled friendly. I would expect that the rest of the world is exactly the same.
I travel a lot for business and leisure, so I know the accessibility situation varies widely. After years of struggling to get around in London, I finally moved to California, chiefly for the much better accessibility options. Here, I'm able to get around in my chair very freely. Most buildings are properly accessible and even the popular beaches are well equipped with ramps and beach wheelchair loan facilities. Of course, there are older buildings in which the fitting of a lift or making accessibility modifications would be prohibitively expensive, but they are fairly few and far between. Finding wheelchair-friendly transportation is fairly easy. All buses are equipped with lifts and there is an accessible van service for those who need door-to-door service (although it's not a great solution for people in a hurry, as the waits can be long). I still drive, however, so I haven't needed to use accessible transportation much.
(Incidentally, Candy Harrington wrote a great book called "Resting Easy in The US" that lists disabled-friendly accommodation across the country. As a disabled person herself, she is very clear about the actual accessibility features of each place she reviews. The book is a bit old now, but I still find it very useful. It's available on Amazon in dead tree format or for Kindle.)
Cities like New York and Chicago are a different story, however. They were built in an era when disabled people were expected to live out their lives in hospitals and sanatoria, so little accommodation was made for them in the infrastructure. New York, for example, used to be tolerable for getting around via wheelchair-capable van services, but "ridesharing" services like Uber and Lyft have largely put these out of business. The subway is, similar to much of the London Underground, a joke. Stairs, stairs everywhere and nary a lift in sight. A few stations have been retrofitted for accessibility, but that just means you can travel between one of these and another similarly-equipped one. Not exactly convenient. And there's still the problem of getting on and off the train (at least there's no "mind the gap" nonsense and 8" chasms between the train and the platform). Hotels are also problematic. New York hotels, in particular, are basically a scam. You typically enter a luxurious lobby, check in at a sumptuous reception desk, are wafted to your floor in a richly paneled elevator, and are then deposited in a hallway that looks like a utility shaft. When you get to your room, it's the size of a gerbil cage (often with the odor of one). Retrofitting disabled facilities into these coffins was always going to be a losing game, so the efforts are typically desultory. Bathrooms are even worse, since most of the plumbing was installed when God was a lad and nobody has the appetite to upgrade it. Often, "accessible bath" means they've replaced the fixed shower head with a spray hose. You still have to climb over the edge of the bath to get in.
The rest of the US is a mixed bag. The West Coast is definitely the more disabled friendly, with Oregon and Washington offering similar levels of accessibility to California. Nevada (specifically, Las Vegas) will do anything to empty your pockets, so they make it very easy for disabled people to do so. The East Coast is varied. New York, Boston, Baltimore and further south provide greater or lesser degrees of accessibility, so you have to do your research much more carefully. Washington DC is not bad, particularly around the Smithsonian and other central tourist attractions.
In Europe, Germany is pretty good in the major cities, although the cobbled small towns can be a challenge. Paris' broad avenues make it pretty easy to wheel around and the major museums are accessible. Little hole-in-the-wall cafes and restaurants may not be so accommodating, however. Italy is pretty bad (wheelchair ramp starting halfway up a flight of stairs, anyone? ATM machine five feet in the air?). Spain gives no shits. Greece has bigger problems and, anyway, your family should be looking after you, shouldn't they?
Scandinavia is generally good, with accessible public transportation and buildings in the major cities. It gets tricky in the winter, however, with sheet ice forming on the pavements, making any journey an adventure (I still have nightmares about sliding uncontrollably down the long hill in front of the Edvard Munch museum in Oslo, face contorted like the subject of his most famous painting). Iceland is pretty good. Reykjavik is even accessible in winter, largely due to the fact they channel steam beneath the pavements, so snow and ice are less of a problem.
Australia is pretty good. Sydney's suburbs might be a bit of a challenge, but the downtown area is compact and easy to get around in a chair. The center of Melbourne is nicely accessible for the most part, but the iconic Melbourne Trams aren't (Not entirely true: there are some accessible ones that disabled people can use via special "super stops" dotted around the city). Adelaide is very pretty and nicely flat. It's compact, so getting around with a chair is pretty easy. The surrounding wine country is definitely worth a visit, but you'll need an accessible car/van for that. The major cities are quite far apart, so you'll need to drive (and drive and drive) or fly if you want to see more than one place.
In Asia, I've found it advisable to stick to the major resort hotels. They tend to have the best facilities and are part of global brands with a reputation to protect. Mom and pop places think "accessible" means "fewer than four flights of stairs." Singapore is making a big effort to improve its accessibility, with the result it's now a fairly easy place to get around in a chair. Older buildings are still an issue, but so many new ones are springing up everywhere (all of them accessible) that it's not really a problem. Japan is fine (Tokyo, Kyoto, Osaka) and terrible (everywhere else). China is a friggin' nightmare (In the major cities, often the only way to cross the road is via a pedestrian footbridge, accessed via a formidable flight or two of stairs. There's sometimes a lift, but it is always locked and the key-bearer is nowhere to be found). In the countryside: well, don't bother.