The mysterious ghost hotel on the bend of South America’s biggest salt lake

A crumbling relic of postwar architecture stands on the southern bend of a lake so vast locals call it the “Small Sea”.

Few places in Argentina’s Cordoba Province feel more suited to a horror film than the Gran Hotel Viena, which rises from the receding shores of Laguna Mar Chiquita.

I confess I didn’t know much about it before arriving. Laguna Mar Chiquita, incorporated into Ansenuza National Park in 2022, stretches between the provinces of Cordoba and Santa Fe, and ranks as South America’s largest salt lake.

Its shallow, mineral-rich waters attract huge flocks of birds, including three species of flamingos that inhabit the shores year-round. But wildlife wasn’t what brought me here. I had come in search of a piece of forgotten architecture with a backstory strange enough to delight Italian exploitation movie directors like Lucio Fulci or Joe D’Amato.

Reaching it takes a little effort. From the provincial capital of Cordoba, a bus trundles north-east for 3½ hours through flat farmland before arriving in the quiet lakeside town of Miramar.

A bustling resort destination in the mid-20th century, Miramar fell into decline after rising water levels partially flooded the town in the 1970s. Today, its modest waterfront is lined with a handful of hotels, cafes and birdwatchers gazing out across the immense silver sheet of water.

From the centre of town, it’s a short walk along the shoreline before the Gran Hotel Viena finally comes into view. Rising just metres from the lake’s edge, the abandoned building still carries echoes of its former grandeur. Designed in the late 1930s by German immigrants, the hotel blended European elegance with then-modern touches: wide halls, symmetrical facades, and hints of Art Deco that once framed a luxury lakeside retreat.

The setting alone feels uncanny, but local lore has transformed the hotel into one of Argentina’s strangest dark-tourism curiosities. Construction began in the late 1930s and expanded between 1940 and 1945 as war raged across Europe. Yet the Viena closed unexpectedly in 1946, reportedly because of labour disputes and financial troubles.

That abrupt ending helped feed decades of speculation. Some stories claim the hotel was financed with nazi capital and intended as a convalescent hospital for German officers. The most far-fetched theories go further still, suggesting Adolf Hitler himself might have fled here after staging his death in Berlin. Historians dismiss these claims as fantasy, but the rumours continue to swirl around the decaying walls.

One story, however, refuses to fade. Two years after the hotel shut its doors, its caretaker, a German immigrant named Martin Krueger, was found dead inside the building. Some locals whisper that he was murdered for knowing too many secrets, though no evidence has ever confirmed the tale. Visitors who venture into the empty halls at night sometimes report hearing footsteps echoing through the corridors, followed by a faint metallic clanking — said to be the sound of Krueger’s keys still jangling through the darkness.

Today, dead tree trunks and crusted salt formations surround its skeletal walls.

And the only way to explore the interior is through Spanish-language tours organised by the Museo Gran Hotel Viena (instagram.com/hotelvienamuseo). They depart daily at 10am, 11am, 7pm and 8pm, guiding visitors through the fading corridors and rooms where fragments of the hotel’s past remain visible in peeling plaster and weathered tiles. For those seeking a stronger dose of adrenaline, ghost-themed tours take place every day at 9.30pm, except Mondays. Tours cost a meagre $10 ($AR10,000).

I’ll admit I didn’t dare venture inside after dark. Instead, I settled for soaking up the atmosphere at Tante Susi, a cafe set inside the Viena’s former lobby. The space has been preserved almost exactly as it was: bare, cracking walls, a gaping hole in the ceiling that opens toward the upper floor’s flooring, and an old upright piano resting quietly in the corner.

Sit down and play a few notes, if you dare. As the wind sweeps in from the vast salt lake outside, you might imagine Krueger applauding softly from somewhere above — and suddenly the sweeping views over the Small Sea feel just a little more chilling.