Say "Aloha!" to the big city on Oahu's South Shore: Honolulu. This sunny capital city is the main portal to the larger Hawaiian archipelago, and the perfect base for exploring Oahu.

Alaska's largest city is the perfect place for anyone who wants a vacation filled with wildlife, outdoor activities, glaciers and gorgeous parks.

Sunshine, cars, celebrities... these are just a few of the things that define Los Angeles. But as any visitor to this expansive Southern California city will tell you, it's a place with seemingly infinite possibilities. There's downtown, with Crypto.com Arena, Walt Disney Concert Hall, and Olvera Street. There's Hollywood, with its Walk of Fame, maps to the stars' homes and palm-tree lined boulevards. There's Santa Monica, with its pier, shopping and ocean breezes.

Midway between Salzburg and Vienna, Linz boasts beautiful Baroque buildings, including Old Town Hall and the Old Cathedral, Alter Dom.

A Russian jewel on the Baltic Sea, St. Petersburg was founded by Peter the Great, but named after the Saint. There's plenty to fascinate visitors to this most cultured and European of Russian destinations, from the expansive Hermitage Museum to spectacular palaces and cathedrals.