South Korea

South Korea is a country in East Asia, constituting the southern part of the Korean Peninsula, and sharing a land border with North Korea. 25 million people, around half of the country's population of more than 51 million people, live in the Seoul Capital Area, the fifth-largest metropolitan area in the world. South Korea is a highly developed country, ranking as the third-highest country on the Human Development Index in Asia.
Source: Wikipedia. 

Map 

Examples of what you can find in YouTube:

Country

South Korea 4K. Interesting Facts About South Korea (2018)

8 Best Places to visit in South Korea (2019)

South Korea 4K (2018)

Cities

Seoul Vacation Travel Guide | Expedia (2017)

Gangnam Station Afternoon Walk | Walking Tour Seoul (2019)

Busan Vacation Travel Guide | Expedia (2018)

Highlights

South Korea - Imagine your Korea 2019 (2019)

South Korea Drone (2017)

Travel to Jeju, South Korea in 4K (2018)

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