Answer: Harry Potter
Harry Potter is the only known owner of a Firebolt broomstick.

Answer: St. Mungo's
St. Mungo's Hospital for Magical Maladies and Injuries is located in London.

Answer: Hedwig
Harry Potter was gifted Hedwig the owl for his 11th birthday.

Answer: All of the founders of Hogwarts
According to legend all four founders of Hogwarts enchanted the Sorting Hat, though it originally belonged to Godric Gryffindor.

Answer: Lee Jordan
Lee Jordan hosted Potterwatch to advise listeners on defenses against Lord Voldemort.

Answer: Lee Jordan
Lee Jordan was a the commentator who called many Quidditch matches during the 1990's.

Answer: Herbology
Madam Professor Pomona Sprout was Head of the Herbology department.

Answer: Aboard the Hogwarts Express
Hermione first met Harry and Ron aboard the Hogwarts Express.

Answer: Hogsmeade Station
Even though the station services Hogwarts School, it is called Hogsmeade after the village it also caters to.

Answer: Gringotts Wizarding Bank
Gringotts Wizarding Bank holds the distinction of being the only one openly catering to wizards.