House of Dance:
http://www.thehouseofdance.org/

Silver Spring YMCA:
9800 Hastings Drive Silver Spring, MD 20901 (301) 585-2120

East Columbia Center:
6600 Cradlerock Way Columbia, MD 21045. (410) 313-7680
http://columbia.patch.com/listings/east-columbia-senior-center

Catonsville Senior Center:
501 North Rolling Road, Baltimore  (410) 887-0900. (Ask for Nicole or Grace.)
http://www.baltimorecountymd.gov/Agencies/aging/centers/catonsville.html

Ying Yang Yoga Center:
Coming soon!

Florence Bain Center:
5470 Ruth Keeton Way Columbia, MD21044-1945 (410) 313-7213

Curves Columbia West:
5565 Sterrett Place, Columbia MD 21044. (410) 730-4800 (Ask for Dorothy.)

Curves Parkville:
2160 E Joppa Rd Ste 101 Parkville, MD (410) 663-4318

Curves Hanover:
2649 Annapolis Rd Hanover, MD 21076  (410) 519-6500

Curves in Colesville/White Oak:
10800 Lockwood Dr., Ste. 202, Silver Spring, MD, 20901 301-592-0092
http://www.curveslocal.com/1247/map-and-directions.aspx

Curves in Olney:
3300 Olney Sandy Spring Rd Ste 110, Olney, MD 20832 (301) 260-7681
http://www.curveslocal.com/1062/hours-of-operation.aspx

United Methodist Church of Savage:
9050 Baltimore Street, Savage, MD 20763
(443) 838-2335 for more details

$10 for Drop-ins. $36.00 for 4-week sessions.

North Laurel Senior Center Plus:
9411 Whiskey Bottom Road Laurel, MD 20723  (410) 313-7218