 The building is 55 stories tall, with a total of 471 guest rooms and 98 suites.The hotel was known for many years as the Millenium Hilton.The hotel's builder chose to intentionally misspell the name with one "n" as "Millenium" on the outdoor signage and official literature, even though the correct spelling of the English word is "millennium", in order to make the name more distinctive.