Gharyan’s unique underground houses were hewn into the mountainside centuries ago, and many lie abandoned, but residents of the Libyan town are hoping tourism can help restore their heritage. “My great-great-great-great-great-grandfather dug this yard 355 years ago,” said Al Arbi Belhaj, who owns one of the oldest houses in the mixed Berber-Arab town south of Tripoli. His ancestor would have used a “tajouk” pickaxe to chip away at the ground ...