Manchester is full of them. Majority of junctions on the M60, the motorway circling the city, have roundabouts after you come off / before you get on.

In fact, there are two roundabouts in Worsley/Walkden. Though those cause a huge amount of traffic in rush hour.

Pretty much any journey I take in the UK involves at least one and could be upwards of 10 to 20 for longer distance drives.