The Radar: Tour the Vatican by iPod, South America by Bus, Best of Puerto Rico

• The Vatican officially kicks off a pilot program today that will allow visitors to tour the Basilica by iPod. The devices, which will be free to use, are part of an effort to reduce noise from chattering tour guides. [Fox News]

• Traveling through South America by bus is easy. Just ask our Digital Nomad. Here are seven bus routes through the continent that provide stunning scenery of cities, beaches, lakes, and mountaintops. [BootsnAll]

• From kayaking through bioluminescent waters to hiking through tropical rainforest, these top ten experiences in Puerto Rico will ignite your wanderlust. [Lonely Planet]

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Photo: Sam Griffin/My Shot