Lake Chad
There is no city in that location. It is in the middle of a lake in Angola in South Africa.
The lake located at 10 degrees north and 73 degrees west is Lake Maracaibo. It is the largest lake in South America and is located in Venezuela. It is known for its unique natural phenomenon where lightning strikes the lake almost nightly, known as the Catatumbo lightning.
Your coordinates of 10N 73W are in the mountains along the border between Venezuela and Columbia. There are no notable lakes in the vicinity. Lake Maracaibo is about 65 miles east of the border.
Lake Victoria
Latitude: N 53° 10' 24.96", Longitude: E 107° 39' 45"
It is located in East Central Africa
Lake Van is located at 40 degrees north and 50 degrees east. It is the largest lake in Turkey and one of the largest alkaline lakes in the world.
Lake Neuchâtel, Switzerland.
There is only one lake in South Africa which is situated in the far north of the country in Limpopo Province in Venda. The name of that lake is Fundudzi Lake.
Lake Victoria is in east central Africa between Uganda to the north, Tanzania to the south and Kenya to the east.
The intersection of 15° north latitude and 15° east longitude is north of Lake Chad in the central African nation of Chad.
Southmere Lake
There is no city in that location. It is in the middle of a lake in Angola in South Africa.
Lake Victoria is relatively located in South east Africa north west from Mount Kilimanjaro.
Lake Victoria is located in East Africa and is bordered by three countries: Uganda to the north, Kenya to the east, and Tanzania to the south. It is the largest lake in Africa by area and the second-largest freshwater lake in the world. The lake is situated near the equator and is a vital resource for the surrounding communities, providing fishing, transportation, and water supply.
lake tanganyika
Lake Ontario is at 44 degrees north and 78 degrees west.