If round houses aren’t radical enough for your tastes, take a look at this: a house in the shape of a crescent –
Designed by architect Ken Shuttleworth of make architects, and built in 1997 in Marlborough Downs, UK, the Crescent House is made entirely of concrete. “We are suspicious of modern boxes dumped on unsuspecting landscapes,” its owners explained.
Even the plans are beautiful –
round houses 
The crescent house looks very beautiful. I believe that London has a crescent shaped Victorian era row of upper class town houses.