I loved the circus as a kid and even as an adult. The guys in the leotards were pretty hot too.
I remember my cousin and I, at 17 or 18 years old, taking her young sister to Ringling Brothers one year and attracting the attention of an entire unicycle troupe. They were so outwardly flirty and we were just so tender and fine. And we had such good seats.
Cirque de Soliel (?) is still one of the most incredible visual experiences I've ever had.
I think a child would be just as enthralled by the live experience of a circus. Hopefully the REAL THING is still the real thing.