It’s the end of the line for the Top of the Hub. After more than fifty years, the popular restaurant atop the Prudential Tower (and its Skywalk Observatory) will be closing on April 18th. The announcement came today that, despite lengthy discussions, the owners of the building have opted not to renew the leases for the two venues. Known for its panoramic view of the city, Top of the Hub has been a mainstay on countless best-of lists and a go-to for all manner of special occasions from engagements and birthdays, to holidays and romantic dinners. There’s still time to book a table or stroll around the skywalk. Call 617.536.1775 for a reservation and cross your fingers for clear skies so you can soak up the view from 52 floors up.