31 pages in this guide are marked free, either through a free tag or an admission line that begins with Free. They include museums such as the Fitzwilliam Museum and the Polar Museum, open spaces such as Jesus Green and Midsummer Common, and the council-run Cambridge Market. Each page says what is free; check it before a special trip, since some museums charge for temporary exhibitions.
The university's main research library, a legal-deposit giant under a brick tower visible across the city.
A bronze soldier walking home up Hills Road, unveiled in 1922 and known as The Homecoming.
A Grade II listed house of 1839 and its parkland, home to the Cambridge Folk Festival.
A compact Victorian park of flower beds and trees, bought by the town in 1886.
A 49-hectare local nature reserve of old grassland on the eastern side of the city.
A gold-faced clock with no hands, driven by a sculpted insect that appears to devour each second.
A former Dominican friary with a Wren chapel, a friars' pool and free daily entry.
A public foot and cycle bridge at the end of Garret Hostel Lane, one of three that link the centre to the Backs.
River meadows linking Newnham to Grantchester, used for walking, picnics and the classic punt-to-the-pub trip.
A Grade II* garden cemetery of 1843 off Histon Road, tied to the landscape designer John Claudius Loudon.
A riverside park north of Jesus College, with a 1920s-style lido and an annual beer festival.
Common land on the river Cam, site of a fair chartered in 1211 and a fireworks night.
A Grade II* listed 1960s concrete campus with the Dome dining hall, the Women's Art Collection and free daily entry.
Cambridge's archaeology and world-cultures museum, free to enter, with Pacific, Torres Strait and local collections.
Everyday life in Cambridge and the Fens since 1700, in a Grade II listed 16th-century former inn.
A free gallery of plaster casts of ancient Greek and Roman sculpture, including a painted Peplos Kore.
Chalk springs that fed Hobson's Conduit, the main water supply of Cambridge for over 250 years.
A cast-iron lamppost of 1894 at the crossing of Parker's Piece, with a famously odd name.
The University's free geology museum, with Darwin's Beagle rocks, an upright Iguanodon and a huge fossil collection.
A Portland-stone hall of the 1720s where Cambridge degrees are conferred, with a roof-top prank in its history.
A Tudor college on both banks of the Cam, with a gate, a hall and the Bridge of Sighs.
A small medieval church by Kettle's Yard, no longer a parish church and cared for by the Churches Conservation Trust.
Relics of Scott, Shackleton and the Arctic peoples, free to enter, in a Grade II listed 1930s institute.
A Portland stone cross by Eric Gill, unveiled in 1921 in the centre of Trumpington village.
A free natural history museum under a hanging fin whale, with Darwin's specimens and extinct birds.
Christopher Wren's library at the end of Nevile's Court, finished in 1695, with Newton's notes and the Pooh manuscripts on the shelves.
A Saturday arts and crafts market in a small garden on Trinity Street, where everything on sale is handmade.
An outdoor market on Market Hill that has traded in the same spot since Saxon times, open every day of the year bar three.
The University of Cambridge's art and antiquities museum, in a Grade I listed neoclassical building with free entry.
A small riverside pasture on the Cam, declared a local nature reserve in 2005.
Two flood-meadow commons on either side of an arm of the Cam, managed together as a local nature reserve.