Old Kilcullen may have related to the reputed site of a palace or ceremonial place of the Kings of Leinster at Dun Ailinne, on an adjacent hill.

St. Catherine, dating to A.D. 550, is the oldest Greek Orthodox monastery, built by the Emperor Justinian at the reputed site of the burning bush.

It is the reputed site from where King Charles I reviewed his troops on October 18, 1642 during the English Civil War; from which event both the mound and the area take their name.

John Ross Browne (1853) writes: 'We also visited the reputed site of Joseph's Tomb.

Also on the property are several domestic and agricultural outbuildings, and the reputed sites of two cemeteries.

Also in the village are the reputed sites of the Washington's homes while they were residents of the area.

According to the Catholic Encyclopedia of 1913, there were scholars who questioned the reputed site of the ancient village (though this was discounted by the Encyclopedia's author):

A well 100 metres from the church is the reputed site of his hermitage.

Constantine the Great built a church on the reputed site of her remains.

Chryse Island in the Aegean, reputed site of an ancient temple still visible on the sea floor.