Exploring an unfamiliar city can be intimidating, with unfamiliar streets, different languages, and throngs of tourists adding to the challenge.

However, some cities are more user-friendly than others when it comes to navigation.

Many iconic European landmarks, in particular, can leave tourists feeling bewildered.

Travel specialists at SIXT conducted an analysis of 50 of the most frequented landmarks across Europe.

Their research reveals where tourists are most prone to getting lost and highlights places where a bit of pre-trip planning could help save precious vacation time.

The research found that, while famous landmarks remain a highlight of many itineraries, heavy congestion, large crowds, and unreliable mobile signals can make navigating Europe’s most popular attractions more challenging than expected. 

Here’s a rundown of the worst offenders – and the hardest-to-navigate spots across the continent.

1. Fisherman’s Bastion, Hungary

The Fisherman’s Bastion on Castle Hill in Budapest, Hungary

New data reveals that Fisherman’s Bastion in Budapest, Hungary, is expected to see a huge influx in visitors this year. 

With a 148 per cent increase in Google searches for the European landmark in the last three months, Fisherman’s Bastion is set to be a popular choice for holidaymakers in 2026. 

But, with a high congestion level, drivers could face a difficult drive to the landmark, as well as many traffic jams.

2. Blue Mosque, Turkey

The Blue Mosque in Istanbul, with beautiful blue domes and tall minarets

The Sultan Ahmed Mosque, popularly known as the Blue Mosque, is an Ottoman-era historical imperial mosque located in Istanbul.

It ranks in second place, with many visitors expected to get lost in 2026. 

With a congestion level of 41 per cent, Istanbul can be difficult to navigate via car. 

3. Hagia Sophia, Turkey

Hagia Sophia Grand Mosque in centre of Istanbul, Turkey

Another Turkish landmark ranks in third place, the Hagia Sophia. 

This world-renowned landmark in Istanbul sees crowds of visitors each year. 

But with a 41 per cent congestion level and low mobile download speeds, it can be all too easy to get lost when trying to navigate your way towards the landmark. 

4. Louvre Museum, France

The world-famous museum of Louvre and its pyramid in Paris, France

The Louvre, or the Louvre Museum, is a national art museum in Paris, France. 

It’s known for housing many hugely famous paintings, including The Mona Lisa of Leonardo Da Vinci. 

But its vast size makes for a confusing, maze-like experience, and it can take hours to wander through even a part of the museum.

5. Buda Castle, Hungary

Royal palace of Buda on Castle hill, Budapest, Hungary

The Labyrinth or Cave system is one of the most visited and loved attractions under the Buda Castle Hill. 

It is part of a huge network of underground caves and tunnels in the Buda Castle District – and, naturally, leads in many directions.

But the entire area can be confusing to navigate, the research has found. 

6. Big Ben & Houses of Parliament

Big Ben and the Houses of Parliament overlooking London’s River Thames

Big Ben and the Houses of Parliament in London are one of the city’s biggest tourist attractions.

But they rank in sixth place, with many visitors expected to get lost in 2026. 

Plus, with a congestion level of 32 per cent, London can be tough to navigate by car. 

7. Tower of London

The historic Tower of London next to the River Thames in the UK

Another UK landmark ranks in seventh place, the Tower of London.

This world-renowned landmark in London sees crowds of visitors each year. 

But with a 32 per cent congestion level, it can be all too easy to get lost when trying to navigate your way towards the landmark. 

8. Buckingham Palace

Royal Buckingham Palace at sunset, in the UK’s capital city of London

If you’re visiting London, you’ll likely want to see Buckingham Palace.

But with a congestion level of 32 per cent, it’s not the easiest to navigate.

Plus, you won’t be alone in wanting to visit – unsurprisingly, given the building’s royal status. 

=9. St. Peter’s Square, Vatican City

St. Peter’s Basilica and St Peter’s Square in Vatican City

St Peter’s Square is a large plaza located in front of St. Peter’s Basilica in Vatican City, the papal enclave in Rome. 

It is one of the largest and most beautiful squares in the world.

But it’s also tough to navigate – a fact which isn’t helped by its 33 per cent congestion level.

=9.  Old Town Square, Czech Republic

Prague’s old town is a labyrinth of small, cobbled streets

Old towns are often difficult to work your way through due to many winding streets and narrow alleys.

Old Town Square in the Czech Republic is one such spot.

The landmark has a 39 per cent congestion level. 

Given it’s full of visitors, you could see long queues and busy streets when visiting.