The theater of ancient Halicarnassus has recently been excavated and also restored. This nature oriented theatre is one of the oldest theaters in Anatolia. Visit of Mausoleum; The Mausoleum of Halicarnassus is one of the wonders of the ancient world. The Mausoleum overlooked the city of Halicarnassus for nearly 17 centuries. It was untouched when the city fell to Alexander the Great in 334 B.C.