Chateau Heliomarin was built most likely in the final decades of the 19th century. For much of the 20th century, it was associated with a nearby medical institution, whose work was based partly on the idea that sunlight, fresh sea air and the marine environment could contribute to the treatment and recovery of patients.

The Petite Ceinture, or “Little Belt,” is an old railway line that once encircled Paris. Built in the nineteenth century, it was created to connect the city’s major railway stations and transport passengers and goods around the capital without having to cross through its busy centre.

Hidden in the countryside of France’s Nièvre department stands Château Secret, once perhaps France’s most evocative urbex location. A few years ago, urban explorers could step inside and wander through its seemingly endless corridors and rooms, filled with antiques, personal belongings and mysteries.

From a place of cultural gatherings during the Belle Époque to a boarding school run by nuns, Fairy Castle has had a vivid history. Today, only the façade remains, after the bulldozers have had their way with what was once an abandoned country house.

Sanatorium Medea was constructed in 1962 as part of the vast Soviet network of health resorts and sanatoriums in Georgia. The building was commissioned by the Central Union of Consumer Societies of the USSR and was originally known as the Centrosoyuz Sanatorium.

Hotel “GF” was built during a period of ambitious coastal tourism development in Georgia in the late 2000s. Designed as a modern seaside resort, it featured luxury accommodation, swimming pools, spa facilities, and restaurants.

“Eye of Anaklia” is an unfinished futuristic tower located on the Black Sea coast in the town of Anaklia, Georgia. Built in the early 2010s, it was conceived as part of the ambitious Lazika project, a government initiative to transform Anaklia into a major resort and commercial city.

Sanatorium Imereti is a recognizable example of the monumental resort architecture that emerged in the Soviet Union during the mid-twentieth century, reflecting the Soviet ideal that health care, recreation, and architecture could together contribute to the well-being of society.

The Kelenföld Power Plant is a remarkable example of industrial architecture, especially because of its oval art deco-styled control room, with magnificent glass ceiling and countless gauges and switches.

Dream Palace is a unique abandoned building in Portugal. It combines an elegant Art Nouveau palace with a former factory and a wine estate, making it a destination that has found its way onto many urban explorers' bucket lists.

Casa Azul is an abandoned Portuguese country house that once belonged to a respected nobleman. It was intended as a peaceful rural retreat, away from the demands of public life.

The Convento de São Francisco do Monte served for centuries as a religious centre dedicated to prayer and contemplation. It was nationalised after the Portuguese Liberal Wars in the 1830s, and over the following decades it gradually became a picturesque hillside ruin.

Palacete dos Flores is an abandoned historic residence in Portugal. It belongs to the architectural and social tradition of Portuguese emigrants who made their fortunes in Brazil and later returned to their native communities.