Visiting landmarks is always high on any holiday to-do list.

You’ve got to tick off the big ones, find the lesser known ones and take as many Instagram-worthy pictures as possible.

[Read more: 9 of the weirdest and wackiest roundabouts in the world]

One thing you might not think to do is look up when you’re inside these tourist hot-spots – which means you’re missing out on some of the most stunning interiors you’ll ever see.

Rome’s Sistine Chapel ceiling aside, Europe has a host of beautiful and brilliant ceilings.

Photographer Loic Lagarde captured some of the amazing artwork and colours in the roofs of places like the Eiffel Tower, Barcelona’s Sagrada Familia and the Pantheon in Rome.

He said: “The colours and shapes are just so impressive and it really looks like you’re looking through a kaleidoscope when you take the pictures.”

Here are seven of the best:

The Eiffel Tower, Paris

Looking up through the tower is just as picture-worthy as it is from up top or down below.

Nur-Astana Mosque, Astana, Kazakhstan

The new Hazret Sultan Mosque opened in 2012, and was designed in Islamic style along with Kazakh architecture figures.

Sagrada Familia, Barcelona

The famously unfinished temple is one of Barcelona's most visited tourist attractions.

Pantheon, Rome

The Pantheon is considered the best preserved building from ancient Rome.

Warsaw University of Technology, Poland

WUT, as it's known, is a technical research institution with traditions in education dating back to the nineteenth century.

Sainte Chapelle, Paris

Located on the Ile de la Cite in Paris, the gothic style royal chapel was erected by Louis IX in the 14th century.

Basilica, Prague

St. George's Basilica in Prague Castle is the oldest church building in the castle.

Picture credit: REX/Loic Lagarde