Places Edited by Henrik Johansson

The abstract sandstone rock formations at this Algerian national park are rich with prehistoric art.

A meow-velous tribute to a beloved street cat, made famous on the internet.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

A vintage video game wonderland in downtown Reykjavik.

An enormous playhouse designed to look like 21 stacked Lego bricks, with another 25 million colorful Legos inside.

Part of the medieval watchtower is displayed in an otherwise ordinary parking garage.

Wall after wall of this French seaside neighborhood is intricately decorated with seashells and corals.

A giant concrete orb in far north Iceland marks the ever-shifting boundary.

An 80-year-old plane tree is devouring an iron bench at Ireland's oldest law school.

The charming storybook building now houses a small police museum.

An English explorer's vast natural history collection has the first realistic dioramas of animals staged in their natural habitats.

Accessible only at low tide, the deserted island is dotted with World War II ruins.

A collection of 16,000 antlers crammed beautifully into a small shed.

A library where thousands of books explain how to avoid another Great Recession.

Legions of Roman soldiers bathed in this ancient spa complex under a Budapest transit station.

The ruins of a medieval castle linked to the murderous French lord that inspired the famous legend of Bluebeard.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

Stripes of human ashes cover a back lawn in the most sought-after burial grounds in Paris.

No one is quite sure of the origins of these idyllic natural hot springs at an abandoned mountain resort.

The remote island home of the overlooked explorer who co-discovered the theory of evolution by natural selection.

A rare set of strings by famed instrument maker Antonio Stradivarius is on display in the Royal Palace.

Tiny memorials honor individual victims of the Holocaust.

A mysterious crater-like pond has a spooky tendency to empty and fill with complete disregard to rainfall patterns.

Canada's first pet cemetery is now abandoned.