Reykjavik Perlan

On Reykjavík’s Öskjuhlíð hill, Perlan looks like a futuristic museum that has landed on a set of industrial silos. It is, in fact, a highly distinctive example of infrastructure adapted for civic use. Its immense glass-and-steel dome is supported by six cylindrical tanks originally associated with Reykjavík’s geothermal district-heating system. Instead of hiding the city’s water-and-energy infrastructure, Perlan puts that engineering history in full view.

The hilltop had held geothermal hot-water storage tanks since 1939, with additions over the following decades. In the late 1980s the tank complex was reconstructed, and architect Ingimundur Sveinsson designed the glass dome above it. Perlan opened on 21 June 1991. The bold composition—round tanks below, glazed hemisphere above—transformed utilitarian storage infrastructure into one of the Icelandic capital’s most recognizable landmarks. The building’s architecture makes a physical connection between an urban service and a public destination.

The geothermal story is not purely historic. A 2024 report by Reykjavík City describes water tanks at Perlan as part of utility balancing and distribution, alongside discussions of the buildings’ property and operating arrangements. Visit Iceland also identifies four tanks as continuing in use while one houses the museum’s ice cave and another its planetarium. Because individual tank assignments and ownership can evolve, the Atlas should distinguish this documented continuing utility role from any claim that every tank is still operating in its original function.

Perlan’s later reinvention as Wonders of Iceland added a different kind of infrastructure: immersive science communication. A purpose-built indoor ice cave allows visitors to experience glacier-like conditions, while the Áróra planetarium interprets the northern lights using high-resolution projection and surround sound. Exhibits about glaciers, volcanoes, wildlife and other Icelandic systems link physical phenomena to accessible public education. Meanwhile the observation deck offers a 360-degree perspective over Reykjavík, mountains and the surrounding coast.

The most compelling way to photograph Perlan is to reveal the contrast. A long-distance view shows the reflective dome against the city; closer exterior images reveal the tanks beneath it; interior stairways show how people move through the adapted building; and a view from the hill makes clear why the site matters geographically. Together these perspectives make an engineering landscape rather than just an interesting isolated building.

Perlan is not evidence that a building is 'smart' simply because it uses digital exhibits. Its deeper lesson for smart-city engineering lies in the reuse of existing civic infrastructure, the combination of utility operations with public access, and the ability of interpretive technology to explain the environmental systems upon which the city depends. The same example also highlights operational trade-offs: structural upkeep, preservation of utility service, building access and long-term ownership must all work alongside the visitor attraction.