The RMS Titanic on trials in Belfast Lough in 1912.The RMS Titanic on trials in Belfast Lough in 1912.
The RMS Titanic on trials in Belfast Lough in 1912.

Titanic Anniversary: 20 facts and photographs of one of the world's most famous ships

Today marks the 109th anniversary of the sinking of RMS Titanic when more than 1,500 people perished in the early hours of April 15 after the ship struck an iceberg on her maiden voyage.

The sinking of the Titanic remains one of the world's worst disasters to this day with interest in the ship prevailing for years. Here are a selection of 20 photographs and lesser-known facts of the famous vessel.