Many objects move in circles without needing any energy.
This starts with stuff like geostationary satellites, continues with moons that orbit planets, goes on to planets orbiting stars, stars orbiting other stars or black holes, and stars orbiting their galaxies' center of mass. All of these perform thousands, millions, and billions of rotations without any need for energy.
Of course, these objects all need to have sufficient kinetic energy to be able to orbit in the first place. An object that's stationary with respect to earth, will just fall down. To get it to orbit earth, it must be accelerated first, and that needs energy. And if you want to get it stationary again after it has completed an orbit you have to decelerated it again. However, while the object is orbiting on a circle, its kinetic energy remains the same all the time, no energy needs to be put in or removed.
The trick about saying that moving the object in a circle does not take any energy is that energy for acceleration and deceleration are added. Acceleration increases the kinetic energy of the object, the orbit does not change that kinetic energy, and deceleration removes the same amount of kinetic energy again. If you can perfectly recover the kinetic energy during deceleration, you get out with a black zero. (Of course, if you have losses, as you always do, you loose energy overall.)
However, that's not the entire story. Because, when an electrically charged object goes in circles, it emits electromagnetic radiation. A circling charge induces a magnetic field. That is what happens in any electric motor, including the one that spins your computer's fan right now. The reverse process works as well, a changing magnetic field accelerates charges round in circles. That's the working principle of any electrical generator, including your bike's dynamo.
Even more curiously, what can be said about the electro-magnetic field can be said about the gravitational field as well: Rotating masses emit gravitational waves, which carry away a tiny amount of energy. Usually we can totally ignore this kind of effect, but when really heavy objects (like black holes many times as heavy as our sun) dance around each other really closely, and really fast (like going round ten times per second or more), that tiny bit of energy loss can amount to the equivalent of three times the mass of our sun radiated away as pure gravitational wave energy... (https://en.wikipedia.org/wiki/First_observation_of_gravitational_waves)
You can move stuff around in circles without needing energy, as long as the object is not electrically charged, and losses to gravitational waves are negligible. Which is pretty much always the case.
However, when electro-magnetic or gravitational effects enter the stage, that's where the real fun starts...
And, at least for the electro-magnetic effects, you personally rely on them every single day.