The exploration of man-made, particularly urban, environments; such exploration in places which are not normally accessible or to which access is prohibited.

A person who explores restricted urban areas such as abandonments, tunnels, roofs, construction sites, etc. Certain non-urban sites can also count, such as mines, quarries, and grain/missile silos.

plural of urban explorer

(urban studies) An unplanned, disorganized growth of housing etc. on the edge of a city.

A specialist in urban planning.

The conscious design of towns and cities. / The science of such design.

A sport that involves a board similar to a skateboard but without wheels or trucks. The rider simply flips the board around using the feet or runs and grinds on objects. Duct tape can be put on objects to make them easier to grind on.

A person living in the city who dresses in clothes that suggest a film of the western genre.

Immediately adjoining an urban area; between the suburbs and the countryside.

(US, Canada) A division of property owned by a First Nations community within an urban area.