Visit district

The Island Saint-Louis offers a remarkable whole of private mansions.
The major axis of the island is the street Saint-Louis-in-the Island which drains all it district and offers to the walkers often decorated frontages of picturesque small details, art galleries, delicatessen and restaurants… http://www.visions-de-paris.com

Site of the Town hall of the 4th district
Plan of the 4th district
Cityvox
Presentation of the Island Saint-Louis
Stroll in 4th district
Wikipedia: 4th district, Island Saint Louis, Berthillon
postcards of the Island Saint-Louis: paris1900.lartnouveau.com
historical charts of the Island Saint-Louis: paris1900.lartnouveau.com