Creating a 3D print and need a grayscale height representation of anywhere on earth? Check out this resource.
The resolution detail varies depending on where on earth you’re looking, but it’s detailed enough you can see the piers along the waterfront if you zoom in to San Francisco, CA.
When using the site, make sure to have the “Controls” open and auto-exposure checked. Include ocean data will allow you to see the sea floor (check out under the Golden Gate Bridge). The Map Lines and Map Labels options make it easy to zoom in, but remember to turn them off before clicking export.