Think Mad Men, not Silicon Valley, as the set for this flexible workspace designed by husband-and-wife team Natasha Juliana and Matt Moller. The couple used their backgrounds in multimedia startups and architecture to create a coworking office with an inviting interior, tech gadgets, and plenty of natural light. More than 200 freelance writers, lawyers, graphic designers, architects, and engineers use it throughout the week. The 1960s building has mod furniture, period art, and classic bold colors; a courtyard provides tables for alfresco offices; and spacious meeting rooms host board meetings, workshops, and tutoring sessions.