Maybe we never thought about it but Portugal has a considerable number of gardens being part of the Patrimony, and some house historical buildings.
The Lisbon Tropical gardens are placed among a space that once upon a time was a place where only existed farms and country houses that belonged to the Portuguese nobility since 16th c to the 18th c.
Officially created as a Garden in 1906, it has about 600 species originated from several continents.
History and memories from science and technics by the time of the Portuguese Discoveries, the expansion, later colonization, we propose an approach to those memories since the 15th century until what it was, at the time, considered a big exhibition in 1940.