Traveling Gnome

I am the world’s greatest traveler. I have been transported by camel, dog sled, pony express, bicycle, train, steamship, automobile/car, airplane, airship, and rocket.

I have portraits of presidents, kings, queens, princes, princesses, shahs, sultans, tribal chiefs, adventurers, explorers, patriots, martyrs, inventors, pioneers, artists, musicians, architects, poets, aviators, dramatists, novelists, painters, athletes, cardinals, saints, and sinners.
I have pictures of foreign beaches, rivers, lakes, sounds, waterfalls, geysers, mountains, monuments, castles, temples and ruins of temples, missions, bridges, harbors, docks, locks, locomotives/trains, balloons, rockets, zeppelins, windjammers, native canoes, modern seaplanes, and the world.

What am I?