Boston’s only rooftop hotel pool, nicknamed RTP, transports guests to a luxury oasis 11 stories above the city. Boston Magazine voted it Best Outdoor Pool in 2011. Grab a piña colada and a lounge chair and stretch out in the sunshine. Not a hotel guest? The public can access the pool weekdays for $50 per person per full day, and $25 per person for 3 p.m. to close. The pool is open 8 a.m. to 8 p.m. on weekdays, 8 a.m. to 6 p.m. on weekends.