3. Mausoleum at Halicarnassus
This 148 feet tall mausoleum was built in present-day Turkey for Mausolus and Artemisia II of Caria. The structure itself was designed by two Greek architects. Just to make the story even more powerful, the tomb structure was built out of tombs of a territory that Mausolus invaded and annexed.
In the history books, it’s been said that the architects wrote a treatise about this mausoleum, however, it has not been found over the years.
This mausoleum too, like the previous structures, was destroyed sometime between the 12th and the 15th centuries. After the arrival of the Knights of St. John of Jerusalem, they used the ruins of the mausoleum to rectify their castle at Bodrum.