Besides the Alamo? which is genuinely one of the most beautiful historical sites I've visited in the US.
The Unearthed Texts BAR Seminar was the best seminar experience I've ever been part of. The group of people who attended were so enthusiastic and knowledgeable that speaking with them was really engaging.
And it was the debut of The Thirteenth Apostle. Professor James Tabor, who gave a series of fascinating lectures on recovering embedded texts at the Seminar, has posted his response to the seminar and my analysis of the Gospel of Judas.