1. St. John’s Co-Cathedral is one of the most impressive churches in Malta, located in the heart of Valletta. It was built by the Order of the Knights of St. John between 1573 and 1578, and serves as a co-cathedral alongside the Cathedral of St. Paul in Mdina.

The interior of the church is decorated with intricate marble walls, ornate altarpieces, and stunning baroque artwork. The highlight of the church is the floor, which is made up of over 400 individual marble tombstones, each belonging to a member of the Knights of St. John. Another notable feature is Caravaggio’s famous painting, \"The Beheading of Saint John the Baptist,\" which is located in the oratory.

2. The working time of St. John’s Co-Cathedral is from Monday to Friday - from 9.30 am to 4.30 pm, Saturday - from 9.30 am to 12.30 pm. Its phone number is +356 21220549.

3. The ticket price for adults is €15, while seniors (60+) and students (with a valid ID) can buy a ticket for €12. Children under 12 enter for free. There are also guided tours available for an additional fee of €5 per person. The church is easily accessible by public transport, with several bus lines stopping near the building. Additionally, taxis and rental cars are widely available in Malta.