Sandwiches would remain an immortal portable snack travelers can carry with them and taste so succulent as to be so gastronomically fulfilling. These delectable, delightful dishes exist all over the world in different varieties that contain chicken, beef, vegetables and the all-time favorite bacon and pork. The world's gastronomic journeyers agree -- these five are the best sandwiches the world has seen yet.

Sandwiches are common in America and when in New York, a great sandwich in the morning can easily lighten up a hectic work schedule. Skip the burgers and head for Sal, Kris & Charlie's Deli in Astoria to have an amazing experience with "The Bomb." This sandwich contains three American and European cheeses and is a pepperoni and ham dominated dish the size of two hand-cupped letter Cs.

When in Edinburgh, sandwiches are not the two-slice middle-meat delights they are in most American bistros. According to Foodie Hub, the "Cullen Sink" is a potato scone that looks like "a thick pancake" that houses a fish soup -- and tastes extraordinary and original.

In South America, Venezuela is an amazing Southern experience and it would not be complete without tasting "Cachapas." A full day of marinating pork legs and a quarter of a day to cook them in charcoal ovens, one can admire the amazing, juicy smell of the meat -- thanks to the native specialty marinades and the mix of vegetables and tomatoes.

In the Middle East is the famous "Shawarma" -- a sandwich made from beef, pork, lamb or chicken served in pita bread and served with vegetables, lettuce and in its traditional form, cucumbers and hummus. Almost every food joint in Jerusalem serves a great Shawarma experience -- ask for second servings on that amazing spicy garlic sauce.

When in Namibia, do not miss an opportunity to eat "Kapana." According to travel blog Changes in Longitude, Kapana is not a sandwich -- but one could make it seem so by buying some rolls before heading to the vendor to buy Kapana. If one can -- take it home and garnish with some vegetables for an amazing experience.