How many locks does a museum have to posses to make it impressive? 100? 1,000? This museum showcases more then 4,000 locks that have been collected by Choe Honggue, the museum's Director-General. Founded in 2003, you'll find everything here from traditional Korean locks to keys and other key accessories. (And if perusing the locks doesn't fill your day, there's an art shop and a café as well)..