Purple amethyst crystals formed inside rocks provided the inspiration for this ambitious hotel design, proposed by Dutch studio NL Architects for an island off the south coast of China (+ slideshow). More about NL Architects proposes "slightly insane" hotel modelled on amethyst crystals
A rainforest populated with orangutans, a giant chess board and floating jellyfish are sculpted from the snow and ice used to create the rooms inside this year's Icehotel in Jukkasjärvi, Sweden (+ slideshow). More about Icehotel's 25th edition includes a square vortex suite
Bedrooms the size of a single mattress are slotted two-high into the walls of this wooden guesthouse in Japan by Alphaville, which takes its cues from capsule hotels (+ slideshow). More about Ladders lead to capsule-sized bedrooms in Koyasan Guesthouse by Alphaville
French design studio Constance Guisset has created a homely interior for the lobby of the Accor hotel group's Suite Novotel in The Hague (+ slideshow). More about Constance Guisset's furniture and lighting populates Novotel hotel lobby
A new timber and concrete cafe cantilevers out towards the swimming pool at this 1970s hotel in Portugal that has been renovated by Campos Costa Arquitectos (+ slideshow). More about Hotel cafe by Campos Costa Arquitectos projects towards a swimming pool
Helsinki-based Studio Puisto used hanging basket seats, strips of timber and potted plants for the interior of this 20-room hotel in Tampere, Finland (+ slideshow). More about Studio Puisto's Dream Hotel extends a popular hostel in a former warehouse
MenoMenoPiu Architects says its concept to reinvigorate the Seine with a string of capsule homes on stilts could help prevent Paris from becoming a "city museum" (+ slideshow). More about MenoMenoPiu Architects proposes capsule hotel along the Seine
Open-source furniture designs and 3D-printed signage are found throughout the Small House Big Door boutique hotel in Seoul, by local studio Design Methods (+ slideshow). More about Design Methods fills Seoul hotel with open-source furniture
Chilean architects Alejandro Soffia and Gabriel Rudolphy were set a strict budget for this seaside guesthouse complex, so they used standard dimensions to get as much value as possible out of their building materials (+ slideshow). More about Rough-sawn pine used to build low-cost Hostal Ritoque in Chile
Inside Festival 2014: Yuki Fukumoto of Japanese architects FHAMS discusses the unusual rooms at Tama Hotel in Phnom Penh, which won the Hotel category at this year's Inside Festival. More about Cambodia hotel features tiny terraced rooms that "look like houses"
Influences from Swedish architecture and traditional Japanese decoration combine inside this blackened timber extension to a hotel near Stockholm by local firm White Arkitekter (+ slideshow). More about White Arkitekter adds a timber and concrete extension to a Japanese-style hotel in Sweden
Portuguese architecture studio Virgula I has used local Iberian chestnut to introduce warmth and character into this hotel renovation in the town of Vila Nova de Cerveira (+ slideshow). More about Virgula I adds warm wood to white-walled Portuguese hotel
Interieur 2014: Belgian creative agency Dift has enlisted furniture brands including Artifort and IKEA to turn the rooms of a school set for demolition into temporary hotel suites during Biennale Interieur 2014 (+ slideshow). More about Dift utilises doomed Belgian school to create Eyes/Nights Only hotel
Spanish designer Jaime Hayón has revamped a room inside the SAS Royal Hotel in Copenhagen originally designed by Modernist architect Arne Jacobsen, using furniture pieces from Danish brand Republic of Fritz Hansen (+ slideshow). More about Jaime Hayón refurbishes Room 506 in Arne Jacobsen's SAS Hotel
Strips of timber from the surrounding forest cover the exterior of this hotel in Sweden by Kjellgren Kaminsky Architecture, so that it reflects its rural setting (+ slideshow). More about Kjellgren Kaminsky clads Öijared Hotel in timber strips from the nearby forest
This cabin made from scaffolding is one of 22 temporary hotel rooms that popped up around Mannheim, Germany, as part of the Hotel Shabby Shabby event for the city's Theater der Welt festival (+ slideshow). More about Hotel Shabby Shabby's 22 pop-up guest rooms included a recycled riverside cabin
World Architecture Festival 2014: architect Moshe Safdie spoke to Dezeen about his two best-known projects: Singapore's Marina Bay Sands development, which hosted this year's WAF; and Montreal's Habitat 67 building which, he revealed, was modelled using pieces of Lego (+ interview + slideshow). More about Moshe Safdie on Marina Bay Sands: a single tower would have been "unbearable"
British designer Tom Dixon's interiors outfit Design Research Studio used a 1920s cruise liner as a visual reference for interiors at the Mondrian London hotel, which opens today in the Sea Containers House building (+ slideshow). More about Tom Dixon's Design Research Studio completes Mondrian Hotel interior
Couples staying at a temporary hotel suite in Helsinki partake in a ménage à trois with a historic statue that's positioned in the middle of the bed. More about Tatzu Nishi builds Hotel Manta around a nude sculpture
Japanese studio Suppose Design Office has converted a seafront warehouse into a specialist cycling centre with a hotel that allows guests to check-in while still on their bikes (+ sideshow). More about Suppose Design Office creates Hiroshima hotel complex targeted at cyclists