Key Points:
Budapest is not one of the best travel destinations, but could be worth a visit for some special experiences.
Nomadic Matt has provided an itinerary that could be worth reading.
According to Wikipedia, "Budapest is the capital and most populous city of Hungary. It is the ninth-largest city in the European Union by population within city limits and the second-largest city on Danube river. Budapest, which is both a city and county, forms the centre of the Budapest metropolitan area, comprising 33% of the population of Hungary."
Here we quote the best way to travel in Budapest provided by Nomadic Matt, a New York Times best-selling author of How to Travel the World on $50 a Day and Ten Years a Nomad, as well as the founder of his website.
Check ChatGPT's answer for alternative itinerary.