Disneyland is about 1.3 times bigger than Holy See (Vatican City).

Holy See (Vatican City) is approximately 0 sq km, while Disneyland is approximately 0.55 km² (0.21 sq mi), making Disneyland 26% larger than Holy See (Vatican City).
Tip: This to-scale comparison of Holy See (Vatican City) vs. Disneyland uses the Mercator projection, which distorts the size of regions near the poles.
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