Are we experiencing lower level of gravity now compared to past? Whole civilizations have been buried underground and we have built new landscapes over them.

The fact that tall buildings and houses are being excavated from under the ground means that we are living very much away from earth's core than the past.

Does this mean that we are experiencing less gravity compared to past Since we are further from the earth's core that causes the pull?

Note: Parent question
 Was the Earth&#39;s sea-level significantly lower in ancient times?

asking as separate question as per community suggestion
Earth's radius is about 6400 kilometres. That's 6400000 metres. Let's say that you have a mound 20 metres high, burying an older settlement. Your new "radius" is now 6400020 metres.

Let's say that $g = 9.8\ \rm m/s^2$ at 6400, your new gravity will be $g = 9.799939\ \rm m/s^2$.

Clearly, this is hardly "lower level of gravity".

To make this even less significant, the 20 metres of extra dirt underneath you have their own contribution to the gravity. Even though the overall mass of the Earth is the same, local mass variations cause gravity anomalies. Not much, but $g$ changes by a bit. So adding more dirt directly underneath you will increase $g$, counteracting the fact that you're 20 metres farther away from the centre.