#1.
56 Commercial Street, Portland, Maine
No one seems quite sure how many islands there are in Casco Bay. Printed descriptions range from 136 to 22... More on An Explorer's Guide: Maine
Year round cruises, charter and commuter services on Casco BayExplore scenic Casco Bay on one of our 7 publ... More on VisitPortland.com

#2.
7 Congress Square, Portland, Maine
Free admission Friday 5 - 9 PM. Tours daily-inquire about times. Maine's largest art museum is a striking ... More on An Explorer's Guide: Maine
This angular I. M. Pei– designed building in the heart of downtown Portland is not only the city&rsqu... More on travelandleisure

#3.
414 Eastern Promenade, Portland, ME 04101

#4.
1270 Westbrook Street, Portland, ME 04102-1917
Topics: historic homes. More on MuseumStuff.com
Not only is the Tate House in a 1755 time warp, the gardens and view down to the Stroudwater river are no... More on Yahoo! Travel

#5.
138 Congress St., Portland, Maine
about Portland Observatory: The Portland Observatory is the only extant maritime signal station in the Unit... More on GoCityKids
Portland is about 2 hours north of Boston on the Maine coast. It is quite a large city, and it is best to d... More on igougo

#6.
109 Danforth St., Portland, Maine

#7.
75 Market St, Portland, ME 04101

#8.
3 Moulton Street, Portland, ME 04101-5012
A 2 hour city tour of a breat old town includes a visit to Maine's oldest lighthouse. Great way to get an overview of the city. Our tour guide, (called himself JJ I think?) was a font of histor... More on Yahoo! Travel
Mainely Tours trolley tour is very informative as to the history of Portland and Maine. More on Yahoo! Travel

#9.
58 Fore Street, Portland, Maine
Visitors can enjoy magnificent views of Portland's waterfront aboard antique rail cars pulled by hard-worki... More on Heritage
The museum is very interesting and you can go in an explore the trains. More on TripAdvisor

#10.
485 Congress St., Portland, Maine
The Maine Historical Society's "history campus" includes three widely varied buildings along busy Congress... More on Frommers
The French were the next to arrive, setting up camp on Saint Croix Island in 1604. More on TripAdvisor
