An ancient oval in the eternal city, where spectacles of blood and glory once captivated Romans, now stands open to the sky.

I am a colorful kingdom beneath the sea, built by tiny animals yet larger than many cities. What am I? Solve the riddle → I can be worth a lot on one side of a border and less on the other, even though I look the same. What am I? Solve the riddle → What was once criticized as an ugly construction, but is now an iron monument that breathes with the seasons? Solve the riddle → What stretches like a spine across an entire continent, yet has neither life nor limbs? Solve the riddle → What is the green lady with a torch in her hand and a crown with seven rays? Solve the riddle →