Only 6abc got an exclusive sneak peek at One Liberty Observation Deck, the city's tallest observation deck. (WPVI Photo)
Only 6abc got an exclusive sneak peek at One Liberty Observation Deck, the city's tallest observation deck. (WPVI Photo)
Only 6abc got an exclusive sneak peek at One Liberty Observation Deck, the city's tallest observation deck. (WPVI Photo)
Only 6abc got an exclusive sneak peek at One Liberty Observation Deck, the city's tallest observation deck. (WPVI Photo)
Only 6abc got an exclusive sneak peek at One Liberty Observation Deck, the city's tallest observation deck. (WPVI Photo)
Only 6abc got an exclusive sneak peek at One Liberty Observation Deck, the city's tallest observation deck. (WPVI Photo)
Only 6abc got an exclusive sneak peek at One Liberty Observation Deck, the city's tallest observation deck. (WPVI Photo)
Only 6abc got an exclusive sneak peek at One Liberty Observation Deck, the city's tallest observation deck. (WPVI Photo)
Only 6abc got an exclusive sneak peek at One Liberty Observation Deck, the city's tallest observation deck. (WPVI Photo)
Only 6abc got an exclusive sneak peek at One Liberty Observation Deck, the city's tallest observation deck. (WPVI Photo)
Only 6abc got an exclusive sneak peek at One Liberty Observation Deck, the city's tallest observation deck. (WPVI Photo)
Only 6abc got an exclusive sneak peek at One Liberty Observation Deck, the city's tallest observation deck. (WPVI Photo)
Only 6abc got an exclusive sneak peek at One Liberty Observation Deck, the city's tallest observation deck. (WPVI Photo)
Only 6abc got an exclusive sneak peek at One Liberty Observation Deck, the city's tallest observation deck. (WPVI Photo)
Only 6abc got an exclusive sneak peek at One Liberty Observation Deck, the city's tallest observation deck. (WPVI Photo)
Only 6abc got an exclusive sneak peek at One Liberty Observation Deck, the city's tallest observation deck. (WPVI Photo)
CENTER CITY (WPVI) -- Only 6abc got an exclusive sneak peek at One Liberty Observation Deck, the city's tallest observation deck.