L'Eixample, the neighborhood Ildefons Cerdà created in Barcelona. He saw each block as a close-knit community. Most of us don’t think a whole lot about city blocks. They’re just there, part of the ...

Elysse Bell is a finance and business writer for Investopedia. She writes about small business, personal finance, technology, and more. Erika Rasure is globally-recognized as a leading consumer ...