PNGTree is one of the best websites for downloading PNG images with a transparent background. From simple icons to buildings, clouds, etc. – you can find almost everything on this website.

In the Layers palette, find the Background layer and click the eye icon to the ... that's the transparent background. You can save the file as a Photoshop (PSD) or PNG file to preserve the ...

You can then hide the background layer if you need to. You can do this by pressing the Eye icon by the Background in the layers tab. Once done, export the image as a PNG to retain the background ...