Ho Chi Minh City in Vietnam is famous for its network of Củ Chi tunnels and holes, used by Viet Cong soldiers as hiding spots during combat. These days, the holes and tunnels are a common tourist attraction. To maximize concealment, the holes were built quite small, which can cause issues for today’s tourists, as this poor woman found out for herself during a recent trip to the hiding holes of Ho Chi Minh City. Credit: Hendrik Beese