This is what South Korea calls "Colorful Daegu". This city of over 2.5 million is, in my opinion, one of the most under-appreciated travel destinations in the world. This south-central city is bustling, full of culture, color and history. Like Seoul, it has a skytower (called the Daegu Tower), mountains to climb, religious sites, the arts and high tech colorful cityscapes. But unlike Seoul, you don't have nearly the congestion or traffic.
There's a lot more to Daegu but this is a good start!