1/ Complete set of original plans for the Parthenon.
2/ Complete contents of the libraries of Heliopolis, Alexandria and Pergamum at their heights. (I know - that's a bit greedy)
3/ A decent statue of Khufu.
4/ Imhotep's tomb.
5/ Menkaure's sarcophagus - currently at the bottom of the med somewhere.
6/ Copy of Ptolemy's Geography with map included.
7/ A Phoenician trading ship c.900BC.
8/ An Old Kingdom Cubit rod.
9/ The location of the battle of Mons Graupius. (Romans vs Scottish natives)
10/ (this is a funny one) A peak at the US government records of George H Mcfadden, archaeologist and spy d.1953, to see why they are still not released.