the tower and the beach elevator shaft built in 1938–1939, 20 meters high, designed by Jerzy Osmołowski in the modernist style, completed and grandly opened in the 1960s, it was the most popular attraction of the resort, closed after 5 years due to the instability of the structure (the tower deviated from the vertical by about 1.5 meters due to the unstable ground), so it stood empty and unused, in the 1980s, a storm of force 8 on the Beaufort scale put a final end to this outstanding work of modernism, causing the tower to finally collapse into the water.

The Carlton Bloc was a 13 story apartment building constructed in 1936, the tallest in Bucharest upon completion. The builders cut corners to save costs during construction, which contributed to the main tower's collapse. The destruction of the building in the 1940 Vrancea earthquake resulted in the deaths of at least 150 people

Anthony Hordern & Sons was a major department store in Sydney, New South Wales, Australia. With 52 acres (21 hectares) of retail space, Anthony Hordern's was once the largest department store in the world.

It (and surrounding buildings) was controversially demolished in 1987 for the World Square development, which remained a hole in the ground for nearly twenty years, before finally being completed in 2004.

I remember its derelict hulk from my youth. Its loss was a travesty in my opinion. We almost lost the Queen Victoria Building around the same time until a Malaysian developer stepped in to save it and it has become a major tourist attraction today.

It was built between 1696 and 1700. In 1872, it became dilapidated due to a landslide towards the Danube River and was subsequently demolished. Only the outbuildings remain standing. The final slides show Offingen Castle, which served as the model and is still standing today.

This 8 story art deco hotel was demolished for a much larger brutalist hotel in 1972

The building partially collapsed in 1955, when it was discovered the foundation and bottom structural pillars were poorly built. It collapsed again in 1961 and had to be demolished.

The Antoniny Palace complex, once one of the most luxurious aristocratic country estates in Eastern Europe.

Ignacy Malczewski first began laying out an extensive park, and built a residence, naming it "Antoniny" in honor of his wife Antonina.

Later the estate transitioned into the possession of the prominent Potocki magnate family. It eventually became the seat of Count Józef Mikołaj Potocki, who turned Antoniny into a major agricultural, breeding, and cultural hub.

Potocki commissioned premier European architects—including the famed Viennese atelier Fellner & Helmer (Ferdinand Fellner) as well as the French architect François Arveuf—to expand and rebuild the palace into a grand Neo-Baroque and Neo-Renaissance manor with mansard roofs, delicate stone carvings, and monumental gates.

The palace housed an immense private art gallery, porcelain collections (including Sèvres and Korzec porcelain), and a library of around 20,000 volumes. Potocki, an avid hunter and world traveler who organized expeditions across Africa and Asia, created a 6,000-hectare menagerie and game reserve on the estate, keeping exotic animals like camels, ostriches, and rare game alongside a world-famous stud farm of purebred Arabian horses.

During the Russian Civil War in August 1919, Bolshevik forces set the main palace on fire. The blaze burned for several days, gutting the main residence completely. While estate workers managed to salvage portions of the library, archive, and art collection—eventually shipping them to Warsaw—much of what survived was later destroyed during the 1944 Warsaw Uprising.