Wall Poems in Leiden: The City That Paints Its Walls

Most cities regulate their graffiti. Leiden commissions its poetry. More than a hundred wall poems, dozens of languages, all painted in public. And then there are the formulas. Almost nobody notices the formulas.

By Leiden Secret Stories · October 2026 · 5 min read

Leiden’s wall poems are free, outdoors, and easy to miss: 101 were painted on the city’s facades between 1992 and 2005, and roughly fifty more have gone up outside that project. The first was a Russian poem by Marina Tsvetaeva at Nieuwsteeg 1. The strange part is not the number. The strange part is how many people walk the old centre with their eyes on the pavement. Look up. It is free. Everything in this guide is.

How it started: one Russian poem

1992. Marina Tsvetaeva’s “To My Poems” appears on a wall at Nieuwsteeg 1, on the corner of the Kloksteeg. In Russian, the original language. Nobody asks whether Leiden needs it. The city just keeps going. A Shakespeare sonnet follows at Rapenburg 30. More than a hundred poems later, the walls read in dozens of languages. A city that treats its facades as pages, and its residents as readers.

Where to look

Start with the two that began it: Nieuwsteeg 1 and Rapenburg 30. Then walk the Oude Rijn: water on one side, old warehouses on the other, poetry overhead if you lift your eyes. One poem waits on the Pelikaanstraat, exactly where the walking route turns. Which poem, in which language? That would spoil it. The hunt costs nothing and runs any daylight hour. Poems do not melt in the rain, which makes this one of the few Leiden plans that survives Dutch weather without a backup.

The secret siblings: formulas, painted large

The wall poems have a lesser-known sibling: the muurformules. Physics equations, painted in giant letters, on buildings connected to the scientists who wrote them. Everyone photographs the poems. Almost nobody notices the formulas. Exactly backwards, because one of those formulas belongs to the son of a Leiden carpenter. The eldest of ten children. The university was closed to him: no Latin, no Greek, and the law required both. So he became a schoolteacher. Then he quietly refused to stop.

In 1873 he defended a doctoral thesis that treated molecules as real, at a time when many physicists doubted molecules existed at all. James Clerk Maxwell reviewed it with admiration. In 1910 came the Nobel Prize. And his formula? You have met it without noticing. It is why geckos can walk on ceilings. The name goes with the story. The story is what the book keeps.

How to read the walls properly

Three rules. Walk, don't drive; the poems are sized for pedestrians. Look up, then look up again; the best ones sit above shop level. And do not rush the languages you cannot read. A poem in a script you don't know still does its job. It turns a wall into a page.

Combine it with a full free day in Leiden, or with the nine hidden gems the poems share their streets with. If the sky opens properly, there is a rain plan, and the poems will wait. They have waited all century.

Do you need a ticket or a tour?

No ticket. The poems are on public facades, not in a museum, and there is no opening time or turnstile. Walk them at any daylight hour for nothing. A guided walk exists if you want company and someone else’s eyes; the self-guided route passes several of them too. But the walls themselves are the free version, and they do not check your booking.

One loop, all of it

The wall poems, the formulas and every place mentioned above sit on one walkable route through the old centre, outdoors and free at any daylight hour. How the self-guided Leiden walking tour works, timings included: that way. Prefer company? There is a guided version on GetYourGuide. Prefer puzzles? The same secrets power a city game on Questo.