It depends on where they bury it. On a scale of millions of years, the landscape can be changed radically. Continents get eroded, tectonic plates collide and ge

It depends on where they bury it. On a scale of millions of years, the landscape can be changed radically. Continents get eroded, tectonic plates collide and get subducted. On mere thousands of years, sea levels rise and fall, rivers change course etc. For instance, the ancient cities of Ur and Uruk used to be close to the shore of the Red Sea, whereas nowadays the sites are about 200km away (silt deposits built up over millenia). The Aegean sea used to extend into a large gulf into Western Anatolia around the time of Homer's Troy. Everything humans built won't last more than a few thousands of years and modern buildings just a few decades. Even satellites in orbit will decay and burn up in a similar time. It would be difficult for any visitor coming to an abandoned Earth a million later to discover anything about our presence.