There is some evidence that construction of the arch was underway during Titus’s reign. Martial wrote a poem called the Liber Spectaculorum, which celebrated the opening of the Colosseum in 80 ...

Though it's not as popular as the Colosseum (but located ... imagine the former glory of the Arch of Septimius Severus, the Temple of Saturn, the Arch of Titus and the House of the Vestal Virgins ...