assemblage

Short definition from Wiktionary

Noun

1. 1
   The process of assembling or bringing together.
2. 2
   A collection of things which have been gathered together or assembled.
3. 3
   A gathering of people.
4. 4
   A group of different artifacts found in association with one another.
5. 5
   A visual art form similar to collage, which combines two-dimensional and three-dimensional, often found, elements into works of art.