Washington has monuments, museums and power centers for three branches of government. But the region’s most important real estate for residents might be Capital One Arena, sports business leader Ted Leonsis said Sept. 19, 2017, at the University of Maryland. “Sports plays now this outsized role in your community and in media,” said Leonsis, the inaugural featured guest in the Robert G. Hisaoka Speaker Series, made possible through a gift from Robert G.