Architectural designer and visualiser Honglin Li has proposed deploying floating high-rise waste-to-energy plants fuelled by plastic waste to clean up the oceans while generating electricity. More
Melike Altınışık Architects' 369-metre-high Çamlıca TV and Radio Tower has almost completed in Istanbul, with only the engineered facade left to install. More
University of Stuttgart engineers have harnessed the natural shrinking process of wood as it loses moisture to create this world-first self-twisted tower in Germany. More
Norman Foster says the The Tulip will become a "symbol in it's own right" as the controversial 305.3-metre-high tourist attraction is approved by City of London. More
The iconic angled tower of Montreal's Olympic Stadium is being converted into offices by local firm Provencher Roy. More
OMA has added another building to its Fondazione Prada complex in Milan, a white concrete tower that will showcase a collection of contemporary art. More
A record-breaking 31-metre-high ice tower has been installed at the annual winter festival in Harbin, China, featuring a shape inspired by the flounces of a flamenco dancer's dress. More
The controversial Dubai Frame has opened to the public, despite an ongoing copyright dispute with architect Fernando Donis, who won a competition to design the observation tower over a decade ago. More
New York studio DFA has envisioned a prefabricated timber tower for New York's Central Park that would both filter a contaminated reservoir and provide views over the city. More
Earth, clay and gravel are compressed to form the walls of this observation tower designed by De Gouden Liniaal Architecten to offer views of a nature reserve spanning the Belgian-Dutch border. More
Towers for charging electric cars replace roadside petrol stations in this concept developed by Ennead Architects in response to emerging transportation technologies. More
A twisting tower signals the presence of this cultural centre and historical archive in Argentinian city Córdoba, which features a huge sloping public square on its roof. More
Designer Giles Miller has worked with visualiser Forbes Massie to draw up designs for a huge monument with a cross-shaped plan and textured brick walls. More
There is only enough room for one person inside this tall skinny pavilion that Chilean studio Pezo von Ellrichshausen has built in the Jardin des Tuileries in Paris. More
Swedish architect Anders Berensson has unveiled conceptual plans to convert a pair of disused electricity pylons into observation towers in Stockholm's Norra Djurgården national park. More
With the Marks Barfield-designed i360 in Brighton set to open to the public this week, drones have shot new footage of the structure billed the "world's tallest moving observation tower" (+ movie). More
French architect Jean Paul Viguier has won a competition to design a new housing and office complex in Bordeaux, proposing a trio of timber-framed towers that will be among the tallest of their kind in the world. More
Italian architect Carlo Ratti has unveiled plans to build a mile-high observation tower, envisioned as a vertical alternative to New York's Central Park. More
Scraps of rubber tyres create a shaggy coat around this narrow tower created by architecture students Matt Ritani and Declan Burn on a countryside sculpture trail in New Zealand. More
When visitors step inside this viewing tower on the coastline of Lincolnshire, England, an inner chamber tilts forward so the nearby beach becomes visible through a pair of aligned horizontal slots (+ slideshow). More
