Gaudí planned a church with 18 towers (12 symbolising the apostles, 4 to the evangelists, and 2 more dedicated to Mary and Jesus), whose heights differ according to the symbolic hierarchy they represent.
Today, 8 towers have been built at La Sagrada Família, 4 on each facade. The facades are not connected and therefore have independent entrances. The visit to the towers can only be made by lift, one on each façade. Tickets can be purchased at the ticket office (in order to avoid long cues tickets have specific appointment time).
For safety reasons, in the event of adverse weather conditions (strong wind or rain) the lifts to the towers may be closed.
For security reasons kids under 6 years old are not allowed to go up to the towers and up to 14 years old should be accompanied by an adult. People with reduces mobility or wheelchair are not allowed either.