(Las Vegas, NV) — Las Vegas’ new city hall opens to the public today. Staffers have spent the weekend moving into the 185-million-dollar facility on South Main Street. The high-tech building has energy-saving features and is designed to improve worker productivity. Critics have complained about the building’s price tag and private elevators they say keep elected officials separated from voters. The old City Hall will become the new headquarters of online retailer Zappos.com.