Bring Out Your Best at Mark Twain Plaza Drive your business forward from flexible office space at Mark Twain Plaza. Collaborate and do your best work in sociable coworking spaces and make important meetings a breeze in fully-equipped meeting rooms. Walk in and be inspired by a modern office with plenty of natural light from floor-to-ceiling windows. Enjoy the convenience of a downtown location and make the most of the choice of amenities nearby, from bars to cafes and more.