Hi Seoul
Quite a konglishy name for tourism operations. What does it mean? Nobody knows. Adding a mere "p" would have been a huge improvement; Hip Seoul.
Lovely Seoul
If you look past the nightly accumulations of soju-inflicted vomit, up between the characterless 20+ floor apartment buildings, and through the blanket of smog, you'll see the peak of Bugaksan as on the cover.
Friendly Seoul
When you're not dodging motorcycles on the sidewalk, getting chased out of crosswalks by cars, or getting trampled in subway stations, you could meet some friendly people.
High Seoul
WTF? The city's elevation is an ant-hill-trumping 86m. What do they mean by "High Seoul"?
Ahh, I get it now, just look at the musician's face on the cover--he must have a secret stash! But, despite numerous historic paintings featuring opium pipes, you're going to be hard pressed to find anything stronger than a filtered cigarette in Seoul.

sometimes when I'm waiting for a train or something I like to run through an imaginary list of slogans that must have been rejected before they went for
"Hi Seoul!"
to be honest though, I normally can't think of any
I'm still amused that they printed "High Seoul" on the pamphlet. But I've got one that could have been proposed but would have been ultimately rejected: GAY SEOUL.
"But, gayness is happiness!"