Pratélaning punthuk magnèt
Punthuk magnèt (en:Magnetic hill) uga diarani Gravity hill ya iku papan panggonan (lumrahé ana ing igir-igir) sing miring sethithik nanging sawangan pinggirané kaya ta tetuwuhan, lemah lan watu-watu karang uga miring kewalikané. Kaanan iki marekaké tipuan mata (en:optical illusion), mangka dalan sing sajatiné mudhun bisa ketok munggah. Mobil utawa kendaraan ketok bisa laju dhéwé (kaya kesedhot magnét) munggah dalan sing nanjak (padahal iki namung tipuan mata) sabeneré dalané iku mudhun.

Nang seluruh donya akèh panggonan sing duwé fenomena iki kaya ta:

Australia 

 Orroroo, South Australia: Magnetic Hill
 Moonbi, New South Wales, near Tamworth has a "Gravity Hill" near the Moonbi lookout.

China 
 Gansu: a  slope at an angle of 15 degrees where water runs uphill, in a desert region of Yugur County. The site has been tested by scientists, including physics professor Fang Xiaoming from Lanzhou University.

India 
 Ladakh: Magnetic Hill in Leh.

Indonesia 

 Limpakuwus kabupatèn Banyumas Jawa tengah.

Koréa Kidul 
 "Mysterious Road" ing Jeju Island.

Saudi Arabia 
 Wadi al Jinn (Valley of Jinns) in Madinah. The Co-ordinates for this Hill are 24.7225583333 N, 39.4445166667 E.

Amérikah Sarékat

Alaska 
 Anchorage (Upper Huffman Road, Hillside, Anchorage Burough).

Alabama 
 Oak Grove (Talladega County).

Texas 
 El Paso: Thunderbird Drive facing south.
 San Antonio: Just east of the San Antonio Missions National Historic Park at the railway crossing at Villamain Road and Shane Road

Cathetan suku 

Igir magnet
Igir gravitasi
Ilusi Optic