Hong Kong Museum of History

 This may look like the entrance to the Museum of History, but it isn't. For that, you need to go to the right and go up the stairs below:

 After finding the entrance, I entered a pretty comprehensive museum.

 Admittedly, it doesn't stand out with anything truly unique, but visitors will certainly have a thorough understanding of Hong Kong's past.

 History here starts with prehistory. Hong Kong was home to tigers!

 Apparently, prehistoric men were all light brown including their hair color and clothing. I guess they blended in with the sandy beaches.

 A nice collection of old pottery.

 Traditional clothing.

 This was pretty cool - an old junk boat.

 You couldn't go inside, but you could go onboard and see what it looked like inside.

 Fish laid out to dry.

 There are several recreated "buildings" inside the museum, so you could look and possibly reenact life in the past.

 It's time to sit down to dinner!

 In the "old city" you could see additional historic artifacts.

 A large area was arranged to display the Seven Sisters Festival, a ritual which has apparently disappeared from modern Hong Kong.

 Lots to see in this museum, especially explaining lots of traditional culture.

 Another large area had a procession set up for a parade.

 Further into the museum, early 20th century buildings were set up.

 There was a post office, a store, a restaurant, and more.

 While the authentic sounds and smells were missing, it really looked like the Hong Kong of early movies.

 You could even board an old double-decker tram, though you couldn't go upstairs.

 These little book things looked pretty cool. I didn't see anything that explained what they were, though.

 Hong Kong is certainly well-known as a shipping and manufacturing hub, and a lot of Hong Kong-made goods are displayed at the end of the museum.

While manufacturing has shifted to even cheaper labor locations, this city has a legacy of producing some of America's classic toys and other merchandise.

Admission is only HK$10 (that's really cheap with the exchange rate!) and the museum is open 10:00-18:00, 10:00-19:00 on Saturdays, Sundays, and holidays; closed Tuesdays and a couple major holidays).
The museum is accessed in a few different ways. The easiest and closest MTR station is probably Hung Hom, using exit D1. East Tsim Sha Tsui (P2) and Tsim Sha Tsui stations (B2) are also nearby. Kowloon isn't too spread out so walking isn't out of the question. The museum's website is here and has some maps to help you get an idea of the museum's location and where the entrance is on the building.