Remember the golden age of travel? You’d pack a sturdy steamer trunk, board a luxurious ocean liner, and arrive in Europe three weeks later with a mild case of scurvy. Today, taking a trip involves removing your shoes in public, surrendering your favorite shampoo to airport security, and squeezing into an airplane seat seemingly designed for a moderately sized garden gnome. What if I told you there was a way to stroll through the streets…