George Clarke looks back across five series of Amazing Spaces and some of the amazing houseboats people have built for the Great British waterways. There's a seaplane from World War Two transformed into a bachelor pad; a 1960s pleasure cruiser refurbished as a marital home; and a hand built custom designed writers retreat created in the shape of an egg. George also looks further afield to an amazing holiday apartment on a lake in Germany and a Danish waterside home kept afloat by polystyrene and water bottles.
