Being an architecture student I can say I have been that amazed in my life only a very few times.
If you enjoy architecture and art definitely don't miss it.
You will admire the spirit of Rietveld and Schroder and realize how genius the design and the structure are given that the house was built in the begging of the 20th century.
It would be better to book before you visit as only guided tours are allowed in groups >=12 people in order to protect the building.
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