To get around Madrid, consider taking the metro or walking. The metro is well-connected and easy to use, with a single ride costing €1.50. Taxis can also be flagged down on the street, but it's important to ensure they are authorized and using the meter. Uber is also available in Madrid.
If you have more time, consider visiting the stunning Palacio de Cibeles or taking a day trip to nearby Toledo. If you have less time, consider skipping the museum or spending less time at each location.