I need detailed world map (preferably vector), just like Google Maps Terrain, but without roads, streets, airports etc. Just pure base map like an atlas with mountains, deserts, rivers, lakes etc. Preferably vector because I need a high detail level (small island, coastline etc.). I've tried a lot of sources but they're not detailed enough or they contain a lot of roads, names, buildings... which I couldn't remove.
EDIT: And, why this url gives me a BLACK image? Shouldn't it be a terrain? https://mt1.google.com/vt?lyrs=t&x=1326&y=3143&z=13