Love all these answers!!!
I almost hate to say it as it, but Disney really did a fantastic job in making not only it's park but rides accessible. My next favorite is Ocean City Maryland. They did a lot to add wheelchair beach chairs and paths over the sand that one can enjoy the beach from their wheelchair. Sadly the hotels and condos are more hit or miss. Another favorite was Lake George New York. It was quite a long time ago, but was my all time favorite memory. A very disappointing location was Atlantic City. Despite their being tons of people ...more then ever seen...in wheelchairs and scooters...many of the casinos and shops even try minimal accommodations. I was so angry I complained in writing to the mayor and a casino went to. The casino gave an apology and gift card but never went back.
I love to travel. As far as accessibility goes. I am thankful to my husband for making most places accessibile! We have traveled to Hawaii.,Taken several cruises to the Caribbean and Mediterranean. Lots of camping! Very very fortunate!!!