The map of Lecce is based on OpenStreetMap; you can verify the level of detail on the left-hand map.

In addition to street names, transport stops and other amenities, you can view, search and bookmark the following map features (restaurants, shops, bars...):

The offline map of Lecce also includes these areas:
San Donaci, Racale, Taviano, Copertino, Campi Salentina, Squinzano, Leverano, Casarano, San Pancrazio Salentino, Trepuzzi, Galatone, Gallipoli, Tricase, Cavallino, Aradeo and 14 others.

When you download this map, you also get full Wikipedia articles and photos for the area, available to search and view, even without an internet connection.