Photo: GuillaumeG, CC BY-SA 3.0 via Wikimedia Commons
The mausoleum is the only part of the Mukata'a two-block complex tourists can visit. You will be asked by the armed guards at the gate to leave any bags (large or small) with them but they will allow you to take your camera with you to visit the tomb. Inside you will find a couple of soldiers standing guard over the tomb. This seems to be a ceremonial guard and they will not object to your taking photos inside there, even of yourself or others next to the marble gravestone.
While not resembling any 'Medina'-style old city, several churches and mosques can be found that may be of interest to visitors.
A protected and family-owned building and a Historical Museum. One of the top sights in Ramallah, displaying the history and art of Ramallah's past and present. A nice and helpful host takes care of the place with over 250 years of history. Also, you can buy special souvenirs.
The museum is in the building where Arafat was held under siege by the Israeli Army in 2002. The museum is interesting in a way that it displays the Palestinian, sometimes a little questionable but interesting view of the difficult past.
The Mukata'a is a two-block compound with a white tower that is lit up at night and visible from most parts of the city. It contains some government offices and conference rooms, as well as the above mentioned Yasser Arafat's mausoleum.
The main venue for performances and concerts within the city.