I visited on a Sunday with my mom. Despite it being a weekend, there weren't many people around, which was great because we got to take pictures.
The National Museum is one of my favourite places in Metro Manila, particularly the Hall of the Masters. I do think it is a must-see because it encapsulates a lot of interesting art history which could attract even those who aren't into art.
I suggest you visit on Sundays, when the admission is free. What I do is; I take a right after the entrance and go through the museum's first and second floors, saving the Hall of the Masters for last which is my favourite part.
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