Looking for wheelchair friendly ish locations to explore (Europe preferably)

Title: Planning a Wheelchair-Friendly European Honeymoon: Cities, Culture, and Accessible Travel

A newlywed couple is seeking destination ideas for a European honeymoon that prioritize accessibility, comfort, and engaging experiences. The pair, aged 34 and 37, are based in Norway and are looking for city-focused getaways that combine architecture, art, museums, zoos, and diverse cuisine with opportunities to enjoy nature as well.

Key considerations:
– Mobility: One partner has a spine injury and uses a manual wheelchair. They can comfortably walk up to about 2 kilometers in a session, with pain increasing if activity is excessive. The partner relies on a wheelchair for longer distances, assisted by their spouse when navigating where needed.
– Terrain and transport: Preference for smooth surfaces and less challenging cobblestones; public transport (trains, trams) is favored. Some tolerance for brief periods of walking if surfaces are accessible, but entire cities with rough pavement are discouraged.
– Accessibility in urban environments: Realistic expectations for curb ramps, even pavements, manageable taxi service with cautious braking, and overall walkability.
– Seasonal flexibility: They are aiming for temperatures in the 20–25°C range and are flexible on the travel month.
– Geographic scope: Europe is preferred due to travel distance, but they are open to other regions if it offers a better accessibility profile. They would like to avoid locations they have already lived in or visited extensively (excluding England/UK, the Netherlands, Norway, Germany, Belgium, which are not options for this trip).

What they’re hoping for:
– A shortlist of wheelchair-friendly city destinations in Europe that balance cultural sites (architecture, museums, zoos, art) with accessible nature opportunities.
– Practical considerations such as accessible public transport, accessible museum and venue facilities, flat or gently sloped urban layouts, and reliable transportation options.
– A sense of the best times of year to visit each destination for comfortable temperatures, with accessibility in mind.
– Suggestions for pacing an itinerary that minimizes long continuous walks while maximizing enriching experiences.

If you have recommendations or firsthand insights about cities that are known for their accessibility, such as well-designed public transportation networks, accessible museums and attractions, and walkable but navigable urban cores, please share. Details about specific neighborhoods, must-see accessible attractions, and tips for arranging mobility assistance or equipment transport would be especially helpful.