Best travel lens for the fujifilm x pro1?

Here is what the site says about that.

From Fujifilm X-Pro1: Fujifilm X-Pro1: A mirrorless camera by Fujifilm with a 16.3-megapixel APS-C sensor, announced in 2012. The first X-mount camera, with a hybrid optical and electronic viewfinder; slow autofocus by today's standards. Specs - Maker: Fujifilm - Mount: Fujifilm X - Sensor: APS-C, 23.5 x 15.6mm, crop factor 1.5 - Resolution: 16.3 megapixels - Stabilisation: none in the body; use stabilised lenses for slow shutter speeds - Announced: 2012 - Type: mirrorless camera ...

From Travel: Travel: A travel camera has to be good at everything and light enough that you still carry it on day five. Landscapes, food, street scenes, people, the inside of a dim church: you'll shoot all of it, often in a hurry, and you won't want to change lenses on a crowded square.

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