10 things to do for under $10

1 Sam Adams Brewery Tour - From hops to malts, this popular tour takes you through the brewing process of making Samuel Adams beer and also teaches you about the patriot behind the brand name and about Boston's beer history. You have to be over 21, and there are, of course, tasting opportunities. The brewery is located at 30 Germania Street, Boston.

- Suggested $2 donation benefits charities

2 Self-Guided Freedom Trail Tour - One option for seeing the Freedom Trail is to hire a human guide, another is to buy a paper guide and walk yourself through the sites at your own leisurely pace. The tour starts at Boston Common and takes you through 16 sites, some of which are listed separately on this list.

- A tour book can cost $7

3 Harvard Student-led Walking Tour - Founded in 1636, Harvard has a rich history with sites that include a 1720 building used by colonial troops, the "Statue of Three Lies" and a house once used by Gen. George Washington. The student guide will also talk about programs and exhibitions on campus. Tours leave the Events & Information Center in Harvard Square.

- Tour is free

4 Faneuil Hall Marketplace - It doesn't cost anything to walk around the historic area and watch the street performers, as long as you don't buy anything at its more than 100 shops. Faneuil Hall was once a great meeting place for local leaders. When you're in the area, also look for the New England Holocaust Memorial, which is on Congress Street, adjacent to Fanueil Hall. The marketplace, also known as Quincy Market (which is actually a part of the marketplace), is a spot on the Freedom Trail.

- No charge

5 Paul Revere House - On April 18, 1775, Paul Revere made history by riding off toward Lexington to warn colonists that the British soldiers were coming ? a journey that would eventually lead to the colony winning its independence. Today his house still stands in the North End and is a national historic landmark. While in the North End, be sure to sample the Italian culture for which the area is now famous. Buying a cannoli at Mike?s Pastry or Modern Pastry (both on Hanover Street) should keep you under budget, if not under weight.

- Admission $3.50

6 Public Garden and Swan Boats - Boston?s Public Garden is an attraction all on its own. While you stroll through the flower groupings, you can view the much photographed George Washington statue and the bronze family of ducks from the children's book Make Way for Ducklings, a tale based in the Public Garden. A small pond in the garden is home to a couple of swans and Boston?s famous swan boat rides.

- There's no cost for strolling through the garden, and the fare for a swan boat ride is $2.75 for an adult

7 The Old North Church - Once known as the Christ Church, the church made famous by Paul Revere's ride is the oldest church building in Boston. You can find it on Salem Street in Boston's North End.

- A $1 donation is suggested for a basic tour, and a behind-the-scenes tour costs $8 for adults, $5 for children.

8 The Arnold Arboretum - Free walking tours of the grounds, which include bonsai, lilacs and much more, are offered. Run by Harvard University, the arboretum is used as a research institution but is open to the public. Located at 125 Arborway, Boston.

- No admission charge, but donations are welcome

9 Bunker Hill Monument and Old Ironside - Built the early days of the United States as part of its new Navy, the USS Constitution became sea bound for the first time in 1798. It earned its nickname "Old Ironsides" during the War of 1812. Today you can tour the ship at Boston Naval Shipyard in Charlestown. Nearby, the Bunker Hill Monument stands as a tribute to those who fought in the Battle of Bunker Hill.

- Tours and admission for both are free of charge

10 Charles River Esplanade and Free Concert - Spend the afternoon strolling and picnicking along the Charles River and bring your camera. Start your stroll at the MBTA's Red Line?s Charles/MGH station, or at a nearby parking area on Storrow Drive, and you should expect to see sailboats, kayakers, the Cambridge skyline and the decorative Longfellow and Harvard bridges. Free outdoor concerts and shows are often presented at the Hatch Shell, located near the Charles/MGH T stop.

- No charge, except for the food that you bring