Wind down from your long day with a sunset rooftop yoga series in South Philadelphia. Female-powered strength training studio KG Strong leads a twice-monthly yoga class at Bok Bar, the super-popular rooftop bar with stunning views of the city — and a private post-class happy hour, too. Classes are every second and fourth Tuesday of the month through September, and all levels of yoga enthusiasts are welcome. For details and tickets, visit the Bok Bar website.