You can't take a deep fryer or a sous vide machine on the road, but an open fire is almost always at your disposal, allowing street vendors across the globe to constantly step up their grilling game.
Above: Fish stacked on spikes by a beach bonfire in Marbella, on Spain's southern coast.
Left: A motorcycle gets a makeover with a portable grill in Shanghai, China.
Bottom left: On the island of Ko Samui, Thailand, vendors can carry everything they need—even the hot grill itself—all on their backs.
Below: A variety of grilled meats gets packed in foil to go at a not-quite-legal shopping cart food stand in Queens, New York.