That would be Manila. It is capital of the Philippines.
The country situated at the coordinates 25 degrees north latitude and 121 degrees east longitude is Taiwan. Specifically, this coordinate point lies close to its capital city, Taipei.
Manila
There's no city there. That point is located on Mindanao in the Philippines, about 20 miles west of Marawi and 40 miles east-northeast of Pagadian.
shanghai
The city located at 15 degrees north latitude and 121 degrees east longitude is Manila, the capital city of the Philippines. The coordinates provided pinpoint a specific location on the Earth's surface, and Manila falls within that exact geographical position. Longitude lines run north-south, with the prime meridian located at 0 degrees, and latitude lines run east-west, with the equator located at 0 degrees.
shanghai
It is not in any city, rather, it is a volcano.
There is no city at this point, or anywhere near it.The point is out at sea, between Indonesia and Australia. It's about 270 miles southwest of Pulau Roti island in Indonesia, and about 670 miles west southwest of the city of Darwin on the north coast of Australia.
That point is about 27 miles north of the center of Quezon City on Luzon in the Philippines.
Buenos Aires, Argentina
The coordinates 38°N 121°W correspond to the city of Sacramento, California. These coordinates pinpoint a location in the northern hemisphere, specifically 38 degrees north of the equator and 121 degrees west of the prime meridian. Sacramento is the capital city of California and is known for its historical significance, diverse culture, and proximity to the Sierra Nevada mountains.
Note: you can't have two norths.14 N 121 E is Alas-as, San Nicolas, Batangas, Philippines14 N 121 W is in the Pacific Ocean.