OK, so she's been through a lot. The dirty diapers, the nasty attitudes, the I-already-know-everythings. This time, treat mom on her special day this Sunday as the Downtown Neighborhood Association hosts its biennial Historic Home and Garden Tour. For $10, check out a sampling of the architecturally diverse historic homes nestled in Downtown's Fourth Ward District located between Central and Lomas. The walking tour runs from noon to 4 p.m. and includes hors d'oeuvres and drinks provided by local restaurants. $10 tickets can be had at Mary Fox Park (14th Street and Roma NW) starting at 11:30 a.m. For more, visit DNA's web site at abqdna.com.