NORTH END. The experienced tour guides affiliated with this company lead groups through the streets of North End, Beacon Hill and Back Bay, along the way pointing out buildings of architectural significance and sharing key bits and pieces of Boston's history. Tours of key sites along the Freedom Trail are available, as are ones that focus on the city's engineering feats and yet others that are geared toward kids.

WEST END. This exciting and fun tour is an adventure that takes place on land and by sea. Duck tours take you through the streets of Boston and into the Charles River in an authentic World War II amphibious landing vehicle. Guides, appropriately called "conDUCKtors," tell about the historical significance of different sites around Boston in an animated way. Quacking the whole way, adults and children alike can't help but laugh at all the fun. Tourists can find two departure points: one at the Museum of Science and the other at Prudential Center.

This is a wonderful way to see Boston! Put on some comfortable shoes and experience the 2.5-mile trail full of historical information. The tour starts at Boston Common, but can easily be picked up at any point along the way just by following the signs throughout the city. The path allows you to visit sites that are very important to the city's history, including the Paul Revere House, the statue of Benjamin Franklin, and the site of the Boston Massacre. Should you have any questions, the men and women dressed in colonial attire will be glad to answer them.

FENWAY DISTRICT. Boston Red Sox players and fans call this home. It is one of the smallest and oldest baseball parks in the major leagues. Built in 1912, this park still has real grass on the field as well as the famed Green Monster. Tickets to games may be purchased at the park, though some games may be more difficult than others to get good seats. Guided tours are offered year around.

CAMBRIDGE. The country's oldest institution for higher learning, founded in 1636, was named for its first patron, Reverend John Harvard. Initially conceived as a seminary, the university now features ten graduate and professional schools. Notable alumni include six United States presidents and more than 40 Nobel Laureates. Guided campus tours depart from Holyoke Center every day except Sunday.