The Danish Geodata Agency (Geodatastyrelsen, abbr. GST) provide point clouds, elevation rasters (both ground and surface), topographic maps and more in a national project that started in 2011. http://eng.gst.dk/maps-topography/topographic-data/

As an experiment, they even have a couple Minecraft servers running with a copy of the elevation model in 1:1 (site is in Danish only): http://gst.dk/emner/frie-data/minecraft/

In New Zealand, LINZ (government mapping agency) provides all of their data online under a Creative Commons Attribution License: https://data.linz.govt.nz/

Judging by the data in Google Maps, the Swiss have some extremely beautiful data:

https://www.google.com/maps/@46.0265849,8.9695393,14z/data=!...

Look how just over the Italian border it gets fuzzy again.

One great thing about the US copyright system is how things made by the US government are public domain. All these maps are public domain.

Many other countries do not do that. Why is why OpenStreetMap started off in UK and is big in Europe.

So yes, many countries will sell you raster/sheets of topographic details, but it won't be open.