Entertainment The best FREE events this week in New York City Take a walking tour of the LES to learn the history of tenement buildings like this one. Photo Credit: Paul Margolis By ROZANNE GELBINOVICH May 4, 2014 7:48 PM Print Share fbShare Tweet Email Teeming Tenements Transformed: A LES Walking Tour The Lower East Side boasts a long history as an immigrant neighborhood, and thus has seen many changes over the years. On this FREE walking tour, Friends of the Lower East Side takes you on a guided trek through the nabe while highlighting the impact of housing reforms on the area's tenements and discussing the businesses that played a role in immigrant life. The rain date for the event is May 17. (Saturday, noon-2 p.m., FREE, registration required by Wednesday by emailing friendsoftheles@gmail .com, meet at the southeast corner of Delancey and Orchard sts., friendsofthelowereastside.org) Author Event: Rick Springfield If you ever wished that you had Jessie's girl -- or that you were Jessie's girl -- you might want to take yourself on down to Union Square Monday night to meet Rick Springfield, who will be discussing his new novel, "Magnificent Vibration," a story about a man who discovers a direct line to God. (Monday, 7 p.m., FREE, B&N Union Square, 33 E. 17th St., 212-253-0810, bn.com) Mother's Day: 'Ain't Mom Grand' festivities at Grand Central Terminal Mother's Day is Sunday, but if you want to get an early start, head to Grand Central tomorrow or Wednesday. Snap photos against a floral wall or chocolate chip wall backdrop. And score goodies for mom with FREE gourmet-dipped berry tastings, as well as a single-stem rose that mom can treasure forever -- or at least for a couple of days. (Tuesday, 10 a.m.-6:30 p.m., Wednesday, 7 a.m.-7 p.m., berry tastings 11 a.m.-1 p.m. & 5-6:30 p.m. daily, FREE, Grand Central Terminal, Vanderbilt Hall, 89 E. 42nd St., aintmomgrand.com) By ROZANNE GELBINOVICH Share on Facebook Share on Twitter Comments We're revamping our Comments section. Learn more and share your input.