Brdo na kojem gravitacija djeluje u suprotnom smjeru

Znači, postoji i balkanska verzija ovog brda

Eto, navodno postoji.
A također imamo takav slučaj i u Italiji, U blizini Rima, jedno malo selo Rocca di Papa.
Kad se izlazi iz tog sela, na jednom djelu ceste dužine oko 100 metara, okrugli predmeti se kotrljaju uzbrdo.
Mjesto je već dulje vrijeme pravo izletište koje svake godine privlači tisuće posjetitelja.

U Srbiji se to isto desava u blizini manastira Sopocani (ako se dobro secam, mada sam davno jos gledala emisiju gde su to naucnici objasnjavali ).

Da, naravno. Nema nikakvog gravitacijskog fenomena, samo optička varka.
Ne mogu pronaći dokumentarac koji sam gledao o tome, ali pronašao sam na Wikici nešto.

A gravity hill, also known as a magnetic hill (and sometimes a mystery hill or a gravity road), is a place where the layout of the surrounding land produces the optical illusion that a very slight downhill slope appears to be an uphill slope. Thus, a car left out of gear will appear to be rolling uphill due to gravity.
There are hundreds of gravity hill locations around the world.

Explanation

The slope of gravity hills is an optical illusion, although sites are often accompanied by claims that magnetic or even supernatural forces are at work.
The most important factor contributing to the illusion is a completely or mostly obstructed horizon; without a horizon, judging the slope of a surface is difficult as a reliable reference is missing. Objects one would normally assume to be more-or-less perpendicular to the ground (such as trees) may actually be leaning, offsetting the visual reference. The illusion is similar to the well-known Ames room, in which balls can also appear to roll against gravity.
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http://en.wikipedia.org/wiki/Gravity_hill

pa mislim da bi najobicnija "vaservaga" razrijesila pitanje nagiba,ako netko zivi blizu ovakvog lokaliteta neka provjeri pa javi