Everything You Need to Know Before Visiting the Basilica Cistern in Istanbul
The Basilica Cistern is one of Istanbul’s top attractions – and I dare say it’s my favorite.
This historic underground reservoir is wrapped in legends. You might recognize it from scenes in the movies “Inferno” and the 007 classic “From Russia with Love.”
I’ve visited Istanbul three times, and this is a place I never skip. To help you plan, I put together this guide with all my tips on how to visit the Basilica Cistern in Istanbul.
Important Tip: To make your trip easier, I recommend buying the Istanbul ePass, which gives you access to the city’s main attractions (except Hagia Sophia). The biggest advantage of this pass is that you can skip the lines — a must in Istanbul!
What’s the history of the Basilica Cistern in Istanbul?
The Basilica Cistern, called Yerebatan Sarnıcı in Turkish, is an ancient underground water storage facility – literally, a cistern.
It was built in the 6th century during the reign of the Byzantine emperor Justinian I to supply water to the Great Palace of Constantinople and nearby buildings.
Building cisterns was common back then, and Istanbul had several across the city. This is the largest cistern in Istanbul, with room for 80,000 cubic meters of water.
It’s known as the Basilica Cistern because a large basilica once stood on this site before the cistern was constructed.
The cistern was restored and opened to the public in 1987.
Where is the Basilica Cistern in Istanbul?
The Basilica Cistern sits just off the mosque square, only about 100 meters from Hagia Sophia. See the location on Google Maps.
Because it’s so central, most people plan their Basilica Cistern visit on the same day as the mosques. I recommend doing the same since these sights are very close to one another.
The eSim we recommend!
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How to visit the Basilica Cistern
To visit the Basilica Cistern, you’ll need to buy a ticket, which you can purchase online or in person at the ticket office.
Buying online is worth it because you’ll have a separate priority line, which is often much shorter than the line to buy on the spot.
To be honest, the official cistern website is a bit clunky and didn’t work well on our phone (and it’s all in Turkish). A good alternative is to buy your ticket online through a trusted partner – for example, this one.
Ticket price
On the official Basilica Cistern website, the ticket price is 35 euros.
On reseller sites like this, tickets cost 33 euros.
I honestly don’t know why there’s a price difference, but I can say I’ve used this site and everything worked smoothly.
Buy your ticket here:
Opening hours
The Basilica Cistern is open daily from 9:00 to 22:00.
Pro tip: I recommend avoiding prayer times at the mosques, when they are closed to visitors. During these times, tourists flock to the cistern and lines get wild.
One time to avoid is Friday at noon, when mosques hold one of the week’s most important prayers, Jummah. If you go after 15:00, once mosques reopen to visitors, you’ll find the cistern line much shorter.
Is a “skip the line” ticket worth it?
The Basilica Cistern is one of Istanbul’s most popular sights, so it’s common to find long lines.
On our last trip to Istanbul, we joined the line around 13:00 and it wrapped around the block, with an estimated wait of 1 hour 30 minutes.
I recommend buying an online “skip the line” ticket that lets you bypass the ticket office line. Another great option is to book a guided tour because groups use a separate entrance with no line.
How long does a Basilica Cistern visit take?
The cistern follows a one-way path, so everyone walks the same route.
If you don’t join a guided tour, you can explore at your own pace, stopping wherever you like along the way.
We spent 1 hour 30 minutes on our most recent visit.
If you book a guided tour like this one, the visit will likely take about 1 hour.
Is a guided tour of the Basilica Cistern worth it?
Many people visit the Basilica Cistern without a guide, and it’s totally possible – but you’ll likely miss some context.
This place is packed with history – after all, the cistern has stood since the 6th century. At the entrance you’ll see a few panels with background and fun facts, but along the route there’s very little signage.
If you want to really understand what you’re seeing and learn more stories, I recommend booking a guided visit. See this tour.
How our semi-guided visit went
On our last trip to Istanbul, we visited the Basilica Cistern again and had a rather… different experience.
We were traveling with my mother-in-law, lost track of time, and arrived around 13:00 on a Friday – a bad move. That’s when the mosques (Hagia Sophia and the Blue Mosque) are closed for prayer, so the cistern line was massive – both for people with online tickets and those buying on site.
Imagine it: all the tourists in the square headed to the cistern, the only attraction open at that time.
We waited 15 minutes without taking a single step forward. Zero progress.
Then we saw a guide assembling a group for a guided tour. Remember how I said group tours have a separate entrance? That’s exactly what he was offering.
Since it was last-minute, we obviously paid a premium, but we accepted because waiting 1 hour and 30 minutes in line with my mother-in-law wasn’t an option. The guide took our group to the priority access. It was a bit hectic because it was crowded, but no issues. We entered in under 10 minutes.
At the start, he gave a 20-minute introduction with historical context and a few curiosities. After that, we were free to explore and walk the route on our own.
There are several group tour styles – some give only a short intro and then you’re on your own, while others have a guide with you the whole time. So pay attention to the format you want when booking.
We ended up spending far more money than expected because we hired a guide on the spot. Don’t make the same mistake – book your tour in advance. It’ll be cheaper and far less stressful.
What you’ll see inside the Basilica Cistern
- The cistern’s structure is an attraction in itself – and to make it even more atmospheric, there’s a light show that makes the space feel otherworldly.
- The Medusa Head
- The Weeping Column – Look closely and you’ll notice one column that stands out. This special column is called the Weeping Column because the marble pattern resembles falling tears.
You’ll also often see sculpture exhibits and art installations along the route. Exhibitions change over time.
On our most recent visit, the exhibition was called “Deeper Beneath,” and one of the highlights was these metal jellyfish.
Practical tips before your visit
- I recommend wearing closed-toe shoes because the walkway is often wet.
- The cistern is usually cooler inside than outdoors since it’s underground.
- I know I said this already, but it bears repeating – this is one attraction where a skip-the-line ticket pays off. Buy here.
- It’s worth checking the Basilica Cistern events calendar for your travel dates. Concerts are common here because the acoustics are excellent. I’ve never attended one, but I imagine it’s very special.
- We paid for our ticket by card at the entrance.
- The cistern is dark, so taking good photos is tricky. The pictures in this article don’t do the place justice.
I hope these tips help you plan your visit to the Basilica Cistern. For more ideas, read our Istanbul guide
Keep reading about Istanbul
- Istanbul International Airport
- Where to stay in Istanbul
- How many days in Istanbul
- Best time to visit Istanbul
- Public transport in Istanbul
- Visiting Istanbul’s Asian Side
Organizing your trip
To help you plan your trip to Turkey, we have put together our favorite planning resources:
- Flights: Get affordable flights to Turkey on Skyscanner.com.
- Travel insurance: Make sure you are protected during your trip. We use SafetyWing whenever we are traveling abroad.
- Renting a car: We always use Discover Cars to get the best car deals.
- Accommodation: Find the best hotels and apartments on Booking.com.
- Activities: Get fun ideas of what to do and buy unique activities with Get Your Guide.
- SIM Card: Stay connected during your trip with Airalo.
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