Take the purgatorial 320 steps that spiral inside the dome - after spending your time looking up, here is a chance to look down: to the basilica and across the whole of Rome.
Pick up Marcus Sedgwick's new book, shortlisted for the Costa children's award, and you'll immediately be impressed – this hefty volume is beautifully and expensively produced, adorned with spirals inside and out.
Visitors on bikes viewed it from spiralling cycle lanes inside the Danish pavilion.
He's known for designing the Tel Aviv Museum of Art, an origami-like building on a triangular plot with rectangular galleries inside, spiraling around a sky-lighted atrium composed of smoothly curved, hyperbolic paraboloids: double-bent planes, like saddles.
The first of the two wings, built from 1914 to 1917, is the most traditional and conservative, with spiraling wood staircases inside and elaborate ironwork grates over the first-floor windows.
The Pompidou Centre in Paris hasn't proved quite as pliable as imagined, while spiralling maintenance costs of the "inside-out" structure of the Lloyd's building in London have prompted the insurance giant to think about leaving.
The public is allowed to roam a spiral ramp inside the dome, taking in wide views of the city, and look down on the debating chamber below as a sign of its superiority over its rulers.
High-pressure pumps force seawater against a membrane, which is typically arranged in a spiral inside a tube, to increase the surface area exposed to the incoming water and optimise the flux through the membrane.
The unique cell-disruption process involves a rotating spiral inside the grinding chamber.
Roll the long side of the dough towards you quite tightly, forming a spiral inside.
