The Tulip – a 305.3-metre tall tower topped with a viewpoint and rotating gondolas designed by Foster + Partners – is planned to be built alongside the Gherkin in London. More about Foster + Partners proposes 305-metre-tall tourist viewing tower for London
Texas firm Lemmo Architecture and Design has clad this hunting lookout and writer's studio in weathering steel, to disguise the structure against the arid landscape. More about Clear Rock Lookout by Lemmo provides vantage point from Texas hillside
The Space Needle observation tower in Seattle has reopened to the public following an extensive overhaul by American firm Olson Kundig Architects, which involved adding "the world's first and only revolving glass floor". More about Olson Kundig completes major renovation of Seattle's Space Needle
Fuses Viader Arquitectes has transformed a 19th-century fortress near the Spanish city of Girona into a museum and hotel complex featuring concrete, glass and weathered-steel. More about Fuses Viader Arquitectes converts abandoned hilltop fortress into museum and hotel
London-based architects Denizen Works has submitted planning for a observation tower containing a vertical gallery and bird hide at Inverewe Garden in Scotland. More about Denizen Works designs "abstracted tree" viewing tower for Scottish botanical gardens
Engineering studio Close to Bone has announced plans to rebuild and enlarge the cantilevered viewing platform it built in Flanders, Belgium, which was severely damaged in an apparent explosion. More about Belgium's gravity-defying Vlooyberg Tower to be rebuilt and extended following arson attack
Arc Designs has created a cantilevered viewing platform, and walkway with a glazed floor, perched on one of the highest points of the Rock of Gibraltar. More about Former military lookout in Gibraltar transformed into glazed viewpoint
A helium balloon tethered to a cantilevered track is among the winners in a competition to design a conceptual observation deck to overlook a volcano's crater in eastern Turkey. More about Winning concepts revealed in competition to design observation deck on Turkish volcano
Dutch firm MVRDV has won a contest to create a wave-like viewpoint on the coast of Holland, which is designed to rock like a seesaw with the changing of the tides. More about MVRDV reveals plans for rocking viewing platform on Dutch coast
This compact timber-and-concrete cabin in the Norwegian village of Nerskogen incorporates large windows that angle upwards to make the most of views towards the nearby lake and mountain range. More about Bergersen Arkitekter's Viewpoint Granasjøen is an angular lakeside cabin with a turfed roof
A dilapidated treehouse in Aspen has been rebuilt using vertical wooden slats and translucent panels by local firm Charles Cunniffe Architects, with plenty of help from the community. More about Charles Cunniffe spruces up treehouse in Aspen with local assistance
This wooden tower by Norwegian architect Lars J Berge provides an accessible hide for birdwatchers on an island north of Bergen. More about Circular wooden tower provides panoramic birdwatching point on a Norwegian island
Work is almost complete on British designer Thomas Heatherwick's giant honeycomb of interlinked staircases, placed at the centre of the Hudson Yards development in Manhattan. More about Heatherwick's Vessel structure nears completion at New York's Hudson Yards
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 about Dubai Frame opens amid claims of copyright infringement
This family home by Narch is crafted from concrete slabs, steel columns and sliding glazing that permits views out over a Spanish nature reserve. More about Sliding glass doors open concrete house by Narch to views of national park near Barcelona
An angular, asymmetric roof tops this house designed by Mole Architects for a site overlooking an estuary in Suffolk, England. More about Mole Architects builds house "like a seagull's wing" on Suffolk coast
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 about DFA proposes tallest timber observation tower to clean Central Park reservoir
Italian studio GGA Architects has transformed the site of an old hilltop settlement in the country's Marche region into a contemporary house comprising stone structures perched on a pigmented concrete plinth. More about Rural Italian residence combines traditional stone exterior with contemporary details
This week saw millions of US residents head out to watch the solar eclipse. With that in mind, we've updated our viewpoints Pinterest board, so that you can plan the best place to watch the next one. Examples include a mountainside platform in Norway and an observatory atop a London car park. Follow Dezeen on Pinterest ›
More about Impressive viewpoints from around the world feature on one of our Pinterest boards
The top of this faceted private observatory in central New Hampshire, by Anmahian Winton Architects, rotates to provide different views of the night sky. More about Anmahian Winton's zinc-clad observatory enables stargazing from a New Hampshire mountain