Complex sentence: The lighthouse was eventually deactivated; the functionality of the lighthouse diminished further as the Malaccan harbour underwent land reclamation during the late-20th century, and is now part of Malacca Town's collection of tourist attractions.
Split into simpler sentences: The lighthouse was eventually deactivated; the functionality of the lighthouse diminished further as the Malaccan harbour underwent land reclamation during the late-20th century. The building is now part of Malacca Town's collection of tourist attractions.