London

Museum London
421 Ridout Street North, 519 661-0333, (http://www.museumlondon.ca). Contains art and historical exhibits.
Eldon House
481 Ridout Street North, 519 661-0333, (http://www.museumlondon.ca). London's oldest surviving residence, containing heirlooms and furniture reflecting life in early 19th century London.
Banting House National Historic Site
442 Adelaide St. North at the corner of Queens Avenue and Adelaide Street, 519 673-1752, (http://www.diabetes.ca/Se...). Tu-Sa: Noon-4PM. Chronicles the life and achievements of Canadian Sir Frederick Grant Banting, the discoverer of insulin. Adults $5, students and seniors $4, children under 5 free.
Blackfriars Street Bridge
across the Thames River connecting the north end of Ridout Street with Blackfriars Street. A rare example of a bowstring truss bridge. Built in 1875 and spanning 65.8m, it is the longest working span of its kind in North America.
Wortley Village
(http://www.wortleyvillage.com/), Wortley Road between Askin Street and Tecumseh Ave, was voted one of Canada's coolest neighbourhoods in 2002 by enRoute magazine. Filled with eclectic, locally-owned merchants and cafes.

There are lots of parks in downtown London. They include:

Springbank Park
A charming destination west of downtown complete with green space, picnic areas & facilities, formal gardens, wading pool, playgrounds, small family train track, merry-go-round and Storybook Gardens. Its paved trails are part of a 30-km system for walkers, cyclists, runners and roller-bladers.
Victoria Park
(http://www.victoria-park.com). According to the City's website this 15-acre park is one of the most important designed landscapes of the 19th century and has been a hub of social and recreational activities since 1874. Many festivals and events take place here throughout the year. Bring nuts to feed the squirrels.