An underground lair modelled on an exclusive nightclub lies below this riverside bachelor pad near Ghent, where the owner has built-in cigar and wine storage, a car lift and a view into the depths of the pool. More about Govaert & Vanhoutte Architects creates bachelor pad with underground club on Ghent's Leie river
Architect Rasem Kamal has proposed a network of burrow-like spaces that would sprawl out beneath a UNESCO-protected valley in the Jordanian desert. More about Rasem Kamal proposes warren of subterranean services for Jordan's Wadi Rum
A doorway discreetly set into a circular stone wall leads into this moody subterranean wine cellar that architect Kerstin Thompson has created at Australia's TarraWarra vineyard. More about Kerstin Thompson adds intimate underground tasting room to Australian winery
This house in Malavli, India, features walls made from local Kotah stone and a glazed, subterranean courtyard (+ slideshow). More about House with stone walls built by Spasm Design around a sunken courtyard in India
Curving windows peep above the ground to bring light into this underground car park in South Holland, which is covered in grassy hillocks to replicate a dune landscape (+ slideshow). More about Dune-shaped car park by Royal HaskoningDHV doubles as a flood defence
Graduate shows 2016: the UK's high-speed railway network could incorporate an underground swimming pool, museum and concert hall, suggests Royal College of Art graduate Ciaran Scannell. More about Ciaran Scannell proposes "fantastical world" in London's HS2 railway tunnels
Open Platform for Architecture is moving forward with plans to build a subterranean residence that will slice into a mountain near Beirut and feature a glass swimming pool for a roof (+ slideshow). More about OPA finds backer for cliffside residence sunken into Lebanese mountain
Three fantasy house plans have been selected as the winners of the Design a Beautiful House competition: a marble-clad mansion, a subterranean lakeside dwelling and a linear property with faceted bays. More about Winners in beautiful house contest include marble walls and underground rooms
A subterranean shaft created by 19th-century engineer Isambard Kingdom Brunel is now accessible to the public for the first time in 150 years, thanks to a new staircase by architecture studio Tate Harmer (+ slideshow). More about Tate Harmer transforms Brunel's first engineering project into underground venue
A wavy zinc-covered roof covers the front of this residence by Madrid practice GilBartolomé Architects, which is dug into a steep cliff face overlooking the Mediterranean Sea in Spain's Granada province (+ slideshow). More about GilBartolomé Architects creates cavernous "Gaudiesque" residence with a zinc-shingled roof
Studio C102 wants to make going to the gym feel like a night out, so fitted out this London basement with neon lighting, black walls and a pop-up bar (+ slideshow). More about Studio C102 designs underground 1Rebel gym to look like a nightclub
Wahana Architects used a combination of red brick, perforated metal and slatted timber to provide different levels of exposure for each floor in the PS-26 Office in Jakarta, Indonesia (+ slideshow). More about Jakarta office block by Wahana Architects features trailing planting and an underground passage
Dutch multidisciplinary studio RAAAF has unveiled plans to expose the subterranean landscape beneath a demolished sugar factory in Groningen, creating a new public space amidst a forest of columns. More about Subterranean public space to be created beneath demolished Groningen sugar silo
Creators of the proposed Lowline in New York, billed as the world's first underground park, have launched a Kickstarter campaign to help fund development of the project (+ slideshow). More about Lowline creators launch Kickstarter campaign for underground park in New York
The cavernous shaft created at the entrance to London's Thames Tunnel by eminent 19th-century engineer Isambard Kingdom Brunel is set to be transformed into a performance venue. More about Brunel's first project to become London's latest underground venue
Greek office Kapsimalis Architects has renovated a small white house on the cliffs of a Greek island, adding two roof terraces with plunge pools, and a third and more sizeable swimming pool in the basement (+ slideshow). More about Santorini Island retreat by Kapsimalis Architects features rooftop and underground pools
News: architects have been selected for two of three new "iconic" train stations in Paris that will be built as part of the Grand Paris Express ring-route rail project. More about Miralles Tagliabue and Elizabeth de Portzamparc to design new Paris metro stations
Raw concrete ceilings are concealed beneath the faceted green roof of this environmental education centre in the Czech town of Vrchlabí, designed by Petr Hájek Architekti to sink into the topography of the surrounding parkland (+ slideshow). More about Concrete education centre by Petr Hájek is sunken into a park landscape
News: two British entrepreneurs are constructing a hydroponic farm in a network of tunnels under south London that could supply local restaurants and retailers with fresh herbs and vegetables. More about Underground farm built in abandoned tunnels beneath London
Portuguese architect Álvaro Fernandes Andrade has completed a training facility for Olympic-standard rowers where angular white volumes snake across a tiered landscape of grassy slopes and dry-stone walls (+ slideshow). More about Rowing facility by Álvaro Fernandes Andrade snakes across a landscape of underground dorms