CityMaps.com, a New York startup that aims to brings the social Web to maps, unveiled a Boston version of its website and app on Monday.

Boston is the fourth city to get the CityMaps treatment (after New York, San Francisco, and Austin, Texas). Also on Monday, CityMaps debuted a “featured maps” function which is the first step toward letting users create their own custom maps.

CityMaps Boston aspires to turn the streets of the Hub into an interactive, block-by-block grid aimed at helping both locals and tourists easily navigate the city. The map and app display all storefronts including restaurants, coffee shops, movie theaters and showtimes, parking garages, ATMs, and dry cleaners.

CityMaps also incorporates the social Web by displaying the latest tweets, daily deals, check-ins, reviews, menus, and other information in each neighborhood.

The company’s featured maps showcase critics’ picks for each city through curated layers on top of its block-by-block breakdown of the city. By clicking on the featured map on the side of the map, users see a layout of icons of a recommended list.

The layered maps will initially be available for select businesses and organizations, with the goal of opening the function up to all users. Interested parties can register to create featured maps by emailing info@citymaps.com.

“The curated list feature will let the top tastemakers in each city organize their recommendations by things to do,” said CityMaps chief executive Elliot Cohen. “The lists will lay out roundups of the top activities and attractions – from the best margarita bars to the best museum exhibits – in a more visual way and will make it easier to navigate the city.”

The new version of CityMaps, which also includes the Boston edition, also introduces a redesigned Discovery Bar, which showcases geographically relevant content that includes deals and tweets from the area on the users’ screen.

CityMaps is available on the Web at www.CityMaps.com and on the iPhone through the App Store.