1 We ended up at this hole-in-the-wall biker bar.

2 Hole-in-the-wall cash machines were introduced in the 1970s.

3 Debbie works in a little hole-in-the-wall craft shop.

4 Even though it was just a small hole-in-the-wall cafe, people from all around flocked to Mel's Diner to enjoy a genuine home cooked meal.

5 The streets are filled with thousands of hole-in-the-wall restaurants, each with its own specialties.

6 "That lit me up. I went to a hole-in-the-wall open mic night and killed. I was hooked," she says.

7 A canyoneer descends into Hole-in-the-Wall Canyon in Blue Mountains National Park.

8 Like your favorite hole-in-the-wall taco place – these hefty Hispanic ho's are Open 24 hours!

9 The couple's first shop was a real hole-in-the-wall, but now they own a chain store.

10 This sushi bar is just a hole-in-the-wall, but it's quite famous in Tokyo.

11 The hole-in-the-wall goes from being a restaurant to being my restaurant.

12 That lit me up. I went to a hole-in-the-wall open mic night and killed.

13 Small convenience stores sit practically on every corner, either hole-in-the-wall mom-and-pop shops, or the bright, boxy chain store variety.

14 Ignore the big brands and make a bee-line for Chang and Biorck (www.changbiorck.com), Beijing's hottest new home furnishings hole-in-the-wall for fabulous silk cushions, ties and bags.

15 9 a.m. - Breakfast calls for some of Shanghai's best dumplings at hole-in-the-wall Jia Jia Tang Bao, located near bustling People's Square.

16 Local food journalists and bloggers have gone gaga over this hole-in-the-wall, a tiny ramen joint in the middle of garish party district Lan Kwai Fong.

17 Annie D'Souza, the Twin Cities community manager for review site Yelp.com, says hole-in-the-wall restaurants can be even more fun (not mention easier on your wallet).

18 I'm absolutely certain that I'm not the only foreigner to have a twang of disappointment when foreigners waltz into "my" hole-in-the-wall noodle stall.