Complex sentence: They then had to search for the building it resembled, the Altare della Patria which locals call "the Typewriter", before they could continue with the Detour, the choice between Gladiator and Charioteer; for both Detours, teams dressed up in ancient Roman costume.
Split into simpler sentences: They then had to search for the building it resembled, the Altare della Patria which locals call "the Typewriter", before they could continue. The Detour was a choice between Gladiator and Charioteer; for both Detours, teams dressed up in ancient Roman costume.