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A bidouble cover is a flat $G:=\left(\mathbb{Z}/2\mathbb{Z}\right)^2$-Galoiscover $X \rightarrow Y$. In this situation there exist three intermediatequotients $Y_1,Y_2$ and $Y_3$ which correspond to the three subgroups$\mathbb{Z}/2\mathbb{Z} \leq G$. In this paper we consider the followingsituation: $Y$ will be a rational surface and $Y_i$ will be either a surfacewith $p_g=0$ or a K3 surface. These assumptions will enable us to have a strongcontrol on the weight 2 Hodge structure of the covering surface $X$. Inparticular, we classify all covers with these properties if $Y$ is minimal,obtaining surfaces $X$ with $p_g(X)=1,2,3$. Moreover, we will discuss theInfinitesimal Torelli Property, the Chow groups and Chow motive, and the Tateand Mumford-Tate conjectures for $X$. We also introduce another construction,called iterated bidouble cover, which allows us to obtain surfaces with highervalue of $p_g$ for which we still have a strong control on the weight 2 Hodgestructure.

Hodge Structures of K3 type of bidouble covers of rational surfaces