The Sagrada Familia might be the best-known unfinished monument in the world. Begun more than 140 years ago, the basilica—which will be the world’s tallest church upon its completion—has been under construction for five generations. Its incomplete status hasn’t prevented the Sagrada Familia from becoming one of Barcelona’s most-popular and most-visited landmarks, though.

Considered architect Antoni Gaudí’s ultimate masterpiece, the church has become a symbol of the city and an unmissable highlight. Want to know the best time to visit the Sagrada Familia? Or how to ascend the building’s famous towers? Read on for everything you need to enjoy a smooth visit.

What’s the best time to visit the Sagrada Familia?

Pick the quietest slot you can—and book a tour for the simplest logistics.
As one of Barcelona’s top tourist destinations, the Sagrada Familia can be very crowded—especially on weekends, during the summer high season, and on holidays. Tickets offer timed admission, and it’s best to buy them well in advance if you’re visiting during a particularly busy time of year.

Aim for weekdays, and arrive early in the morning if you can, or book a tour with fast-track entry and a guide who can help steer you around the crowds and straight to the highlights. Booking a private tour of the basilica can also offer a somewhat calmer experience.

Insider tip: Even if you have pre-booked tickets, you will still need to wait in a short line to undergo security screening before entering the site. Avoid bringing backpacks, suitcases, or food and drink to speed up this process.