The New Seven Wonders of the World

colosseum rome seven wonders
Richard T. Nowitz / National Geographic / Getty

Colosseum; Rome
Almost every sports stadium today is created based on the design of the Colosseum, built between 70-82 A.D. Located in the center of Rome, the amphitheater could seat up to 50,000 spectators who watched public spectacles like the infamous gladiator fights.