Complex sentence: Originally, the building had a central courtyard, where prohibition-era confiscated alcohol was poured down a drain; over time, this courtyard was filled in to make room for more offices and a jury room.
Split into simpler sentences: Originally, the building had a central courtyard, where prohibition-era confiscated alcohol was poured down a drain. Over time, this courtyard was filled in to make room for more offices and a jury room.