I would like to recommend that all travelers who come to Madrid visit a website that offers the 10 best things to do in the city.
There are different options, gastronomic, tourist, sports … according to the tastes of each one. But always at a fixed price and in high-quality places.
It is very practical to be able to buy online and then they give you 30 days to use it.
It is a great help to discover the best of the city.
Highly recommended.