There blocks, but also shelves. Maybe they're not the most practical thing, but they're certainly fun.
Have tons of small things you want to display? If you don't want your space to look like Granny Thelma lives there, with a million small Thotchkies and Doilies...check out these block shelves. Your sports/camera/beer bottle/wine/seashell/baseball card collection will look great on these... repeat the shelf for the best design sense! The dark one is great, but the white one would also look really great for a modern space on a dark colored wall...