What U.S. city is the easiest to explore by wheelchair?

• Portland, OR 9.68% (9 votes)
• San Diego, CA 13.98% (13 votes)
• Atlanta, GA 2.15% (2 votes)
• Las Vegas, NV 25.81% (24 votes)
• Washington DC 16.13% (15 votes)
• Orlando, FL 12.90% (12 votes)
• Boston, MA 3.23% (3 votes)
• Chicago, IL 8.60% (8 votes)
• Austin, TX 7.53% (7 votes)