Western Maryland Scenic Railroad- Are you crazy about trains? The Western Maryland Scenic Railroad has lots of different railroad trips- even Murder Mystery Dinners.
http://www.wmsr.com/
Appalachian Trail- The Appalachian Trail runs from Maine to Georgia, and many people attempt to hike the entire trail all at once. If you don't have 5 or 6 months to spare, a day hike on the Maryland section will give you the flavor of the trail and some great views.
http://www.outdoors.org/
C & O Canal- The C & O Canal runs from Georgetown, in Washington, D.C. to Cumberland, Maryland. In the 18th and 19th centuries, boats traveled along the C & O Canal to deliver goods. Today, you and your family can hike along the C & O Canal, and learn more about Maryland's history.
http://www.candocanal.org
Central Maryland
Torsk Submarine at the Baltimore Maritime Museum- The Torsk Submarine was built in 1944 and was used during World War II to patrol the Pacific Ocean. Today the Torsk is part of the Baltimore Maritime Museum. The museum has three historic ships and one lighthouse that you can tour.
http://www.usstorsk.org/
http://www.baltomaritimemuseum.org/
Port Discovery- The Kid-powered museum! See Meet and Greet Street, where you can watch live performances and explore special exhibits. At Kidworks, you can climb through the three story urban tree house. You can build creations at the R & D Dream Lab, and do tons of other exciting and fun things!
http://www.portdiscovery.org/
The Maryland Science Center- At the Maryland Science Center, science comes to life! Learn more about the creatures of the Chesapeake Bay, watch an Imax movie, attend a live demonstration, and much more. There are a lot of hands-on exhibits that show you just how fun science can be.
http://www.mdsci.org/
The Walters Art Gallery- At the Walters Art Gallery, you can learn more about art from 3000 B.C. through the 20th century. You will see an Egyptian statue of a high official, a bracelet from Olbia, an ancient Persian town, a vase once owned by Peter Paul Rubens, a famous painter, a ceremonial cup from Poland, and lots of other beautiful art.
http://www.thewalters.org/
The Baltimore Orioles- It's easy to get to Camden Yards by Light Rail and cheer the Orioles on to victory. Baseball is the American past time, and today's Orioles have been a part of Baltimore since 1954.
http://www.theorioles.com
The Baltimore Ravens- The Ravens came to Baltimore in 1998, and have quickly made their way into the hearts of Baltimoreans. See our Superbowl champions play at PSI Net stadium in downtown Baltimore.
http://www.baltimoreravens.com/
B and O Railroad Museum- Learn about the history of railroading in Maryland and the United States, and walk around the rail yard, where you can see real trains up close!
http://www.borail.org/
Eastern Maryland
Blackwater National Wildlife Refuge- The Blackwater National Wildlife Refuge is one of the largest natural areas in Maryland and is home to bald eagles, geese, reptiles, and Delmarva fox squirrels.
http://www.dnr.state.md.us/baylinks/24.html
Assateague State Park- You're probably familiar with Marguerite Henry's Misty of Chincoteague, but did you know that the same wild horses can be found on both Chincoteague and Assateague Islands? Aside from watching the wild horses, there is plenty of camping, birdwatching, and hiking.
http://www.gorp.com/gorp/resource/us_ns/md_assat.htm
Waterman's Museum- At the Waterman's museum, you can learn about the life of the watermen of the Chesapeake Bay. There are exhibits on fishing, crabbing, and oystering as well as a reproduction of a shanty house and plenty of boats.
http://www.havenharbour.com/hhwatmus.htm
Chesapeake Bay Maritime Museum- Did you know that the Bay was formed by melting glaciers? At the Chesapeake Bay Maritime Museum, you can learn about the history of the bay, the origin of the name "Chesapeake", and learn more about the boats that have sailed on the Bay.
http://www.cbmm.org
Ocean City- Ocean City is always fun in the summer- playing on the beach, strolling along the Boardwalk, or just enjoying the sights.
http://www.ocmaryland.com/index.asp
Southern Maryland
St. Mary's City- Historic St. Mary's City was the site of Maryland's first capital. Now it is a premier archaeology and open-air living history museum on the original site of the colony founded in 1634.
http://www.smcm.edu/hsmc/
Point Lookout State Park- You can camp, fish, swim, and boat at this park. At the park, you can find the remains of Fort Lincoln, a Federal prison camp that help Confederate soldiers during the Civil War.
http://www.dnr.state.md.us/publiclands/southern/pointlookout.html
Calvert Cliffs- Explore Calvert Cliffs and discover prehistoric sharks teeth and other fossils. You can even keep the fossils that you find!
http://www.dnr.state.md.us/publiclands/southern/calvertcliffs.html
Jefferson Patterson Park and Museum- At this environmental preserve you can see over 70 archaeological sites which help tell the history of Maryland.
http://www.jefpat.org/
Dr. Samuel A. Mudd Home- Learn more about the infamous
doctor who, in 1865, treated the leg of John Wilkes Booth,
the man who assassinated President Abraham Lincoln.
http://www.somd.lib.md.us/MUSEUMS/Mudd.htm