If you live in Chicago you may be able to get yourself a Frank Gehry building for free. Or more precisely, a copy of Frank Gehry's Venice Beach House (pictured).

Behind the gift is an architect/artist called Nick and in exchange for the building, you need to document your experience with the structure, periodically recording how it has effected your life.

The purpose of the project is to question the benefits of contemporary 'starchitecture' and its effects on the human condition. If interested, you can contact Nick via Craigslist.

• chicago.craigslist.org

Bucky Bar is a spontaneous and temporary public building made entirely of umbrellas.

Visitors were asked to show up with an umbrella at an outdoor location on a Friday night in Rotterdam, NL. With the help of a team of architects, the umbrellas were then used to build a fully equipped bar, complete with DJ and drinks.

300 people turned up at the event, and just as it began, the beautiful building ended its life spontaneously when the Police showed up at 2:00 AM.

Bucky Bar is a project by the DUS Architects and the Studio for Unsolicited Architecture, produced to coincide with the opening of the Architecture of Consequence exhibition at the Netherlands Architecture Institute (NAi).

• www.dusarchitects.com

For the annual art event IHME in Helsinki, British sculptor Antony Gormley created the project 'Clay and the Collective Body' in which he brought together 1300 local inhabitants to work with a 4x4x4m clay cube.

The giant piece of clay was placed in a hangar-sized tent, and in the course of 10 days the clay was gradually transformed to thousands of small sculptures.

• read more at Flash Art

Copenhagen International Wood Festival is a competition in which 15 teams were selected to build unusual sculptural constructions using the same kind of wood.

The competition is over and the constructions are currently exhibitted in a park in central Copenhagen.

Team 12 (Meyer & co) was awarded the first price for their cocoon-like structure while team 11 (pictured) seemed to get the children's award.

• www.wood-works.dk

The Canadian Center for Architecture in Montreal is currently running the excellent looking exhibition Actions: What You Can Do With the City.

The exhibition documents and presents 99 actions - or 'urban interventions' - that instigate positive change in contemporary cities around the world.

Common activities such as walking, playing, recycling, and gardening are pushed beyond their usual definition by international architects, artists, and collectives featured in the exhibition.

Two of my favorite actions included in the exhibition are (P)LOT by Michael Rakowitz and Football Field by Maider López (see images). The exhibition also includes the brilliant Camera Surveillance Players and the excellent PARK(ing) project by Rebar.

If you can't make it to Montreal, you can view the 99 actions on the exhibition website. The site also contains a user-generated section which makes it possible for anyone to submit their own actions. The most popular ones will be featured in the physical exhibition later on.

• www.cca-actions.org

Moving Forest is a park on wheels. The park is made of trees in shopping carts that allow the public to rearrange their own little park.

The forest is created by Dutch architect firm NL architects in response to the lack of green nature in contemporary urban environments - which in the case of the Netherlands, more or less amounts to whole country.

Moving Forest was recently installed at the Experimenta Design event in Amsterdam.

• More images of the intruiging project is available here.

A few months before the senseless events on 9/11, the performance-group eteam took part in the LMCC artist in residence program that had studios on the 91st and 92nd floor of the North Tower of the World Trade Center.

On the night of March 29 2001, the eteam created a temporary light-sculpture using illuminated windows in the North Tower to spell their name in capital letters. To create the letters, they needed 279 'dark' and 127 'light' windows on 7 floors (from 89th to 95nd). The event was carried out in collaboration with 12 offices located on the respective floors.

During their stay, the eteam did another site-specific event called Quick Click in which they made photographic portraits of people in the studio from a helicopter hovering outside the building.

Related: MIT students already carried out similar window hacks in the 90's. See also the famed Blinkenlights project in Berlin, launched on september 12 2001.

• 127 Illuminated Windows

RDF181 is the name of a temporary parasite-looking structure in the center of Brussels.

For almost a year, RDF181 has been the headquarters of Rotor which is a design platform dedicated to exploring creative ways of reusing industrial waste.

The structure will disappear again this February and during it's short life span, it has housed Rotor's meetings, performances and exhibitions.

RDF181 is an initiative of Maarten Gielen, Lionel Devlieger, Mia Schmallenbach and Tristan Boniver.

• RDF181

Last November, the Swedish designer Samir Alj Fält organized the interactive design project Ultravåldsdesign (~ ultraviolent design), in which he examined the relation between creation and destruction.

Inspired by the somewhat innocent and exploratory side of children's destructive nature (ripping stuff apart, kicking things), Samir invited 6th grade students from a local school to participate in a series of workshops.

Together they vandalized objects and materials to explore how aggression and frustration can be used in a constructive way, and to see if there are ways of creating design that can not only resist violence, but can also be improved by it.

The project was realized in collaboration with Tensta Konsthall near Stockholm.

Some of the thoughts of Ultra Violent Design can also be found in the project 'do-create' by Kesselskramer and Droog Design, which took place 7-8 years ago - I am thinking particularly of Marijn Van Der Poll's work do hit.

• Tensta Konsthall