Our search ,begins from our interest, in the ways that the building, in architecture are converse with the land. These ways, sometimes showa smaller or bigger sensitivity , to how the building  weaves together with the land and sometimes show indifference.  This graduation, encouraged our interest for further research.

The building converse with the land , help out by the  ground, in several ways. Simply siting on the ground ,or detaching from this or deepening in it up to a point, until  it disappears.  The building adjucts to the bas-relief or conflicts  with it.

Surely, the architecture of the past few years, often  presents propositions  that the building, the ground and the landscape determine differently.  Also,  already testing approaches continue to apply such as undermined buildings.

Our examples, are from the undermined buildings ,in the last decade and also in that which imitate the bas-relief of the ground. Since the variety in the dialogue between the building and the  ground is mainly shown in it.  

Our search  was based in bibliography, in articles of architectural magazines, as well as world architecture press for the workshop of famous architects.

In our search ,we are looking at the  characteristics of  buildings. Some of them are more conventional, the building has a  mild relationship with the ground and the landscape. Or deepening until  they disappear.  

From the other hand ,there are examples which overthrow the relationship of building .ground, landscape and all those  involved. Therefore a new form  of building and a new architecture is created,the geoarchitecture. This approached enlarged the limits of architecture.

In the first chapter, we are searching the relationship between the man and the inhabitation in caves and also the meening  to insert  in the land.. More over mythological elements from the Anciant Greece,for the land.

 We referent some undermined buildings from the history of architecture.

Talking for the <> of Plato, to explain the imitation of the bas-relief of the ground, from some architects.

We see the dialogue between the ground  and the building. Also the attempt for searching new forms in architecture.

In the second chapter we examine two different approaches of building, regarding theirs relationship with the subsoil.

Undermined buildings and buildings whose imitate the bas-relief of the ground.

We see some buildings from the first approashe, like the <>,Tandao Ando, the <>, Palerm and Tabares,  and the ,<< Igualada Cemetery>>, Enric Miralles  andCarme Pinos.

From the second approach,  we see building like the  <>, Renzo Piano Building Workshop and the <<  City of Culture of Calisia >>τουPeter Eisenman   and also the  <>, Forein Office Architects.

Inconclusion we compare all these, what the relationship  between the ground and  architecture form, is what  view appear or disappear ,for theirs geometry, whether the new elements of design which  help to create new forms, for theirs materiality.

The dialog among building and ground offers a new site , in which reading the possibilities and the problems of bisection, like building-ground, inside -outside, physical -artificial .

Unmouvements limits ,abolish either in undermined buildings or in those  whitch imitate the bas-relief of the ground, like the Tandao Ando and Peter Eisenman.

The syneresis, of building and ground , open new chances for  architectural expration and ways that architecture and land coexist and meaning together, at the same time.