If you have to be rich to live in one of the TRIPs, you have to be “RICH” to live in Century City, the name given to floors 100+ on the tallest buildings in the center of the city. Once the city’s elite made it to the top of the six original TRIPs, they decided there was no need to go back down, and created a system of bridges linking the buildings together. Over time, other skyscrapers were added to the intricate bridge system.