Seoul, the capital of South Korea, is home to more than nine million people and is considered one of the most vibrant cities in Asia. It is surrounded by rocky mountains and filled with a mixture of ancient buildings and modern skyscrapers. The skyscrapers throughout the city offer stunning views over this sprawling metropolis. Seoul is an extraordinary and fun city where you can find many unique and unusual things to do. You should set aside at least 3 days for Seoul to explore it fully. Some of the highlights on this list include exploring an abandoned theme park, getting lost in varying Korean markets, checking out ancient buildings, learning more about Korean life, and immersing yourself in nature at a scenic national park. I have combined my favourite fun and quirky things to do in Seoul that you can't miss while here. Some of the activities mentioned don't exist anywhere else in the world! So, if you are interested in finding out more, scroll down to take a look at the 26 top unusual things to do in Seoul.