Gorgeous Costa Rica teems with dense rain forests, panoramic cliffs, and dazzling waterfalls.

BBC: Daily deal: Utopian panoramas in Costa Rica

We hugged three-story-high dirt walls with vines clinging to them, passed dense bamboo forests, fragrant hibiscus bushes and groves of towering rainbow eucalyptus, a rare tree with multicolored bark.

WSJ: Driving the Hana Highway in Maui, Hawaii

It's peppered with craggy, Gothic mountains, dense forests and sparse pockets of civilization.

CNN: The loneliest cowboy in the world

Siilasmaa's company is based in Espoo, Finland, a city among lakes and forests that lacks history, but is dense with the future.

CNN: Virus protection coming for wireless users

He lived and hiked among dense eucalyptus forests in the Dandenong Ranges National Park, which were thick with mosquitoes whose bites scarred his face.

NEWYORKER: No Secrets

It is a relatively straightforward 10.9km hike, taking around three days round trip, but there is a great range of scenery to enjoy, from dense forests of dark fir to mustard coloured grassy slopes to sheer cliff walls with crinkled boxfold rock formations.

BBC: Hiking in the landslide capital of the world

Odzala is characterized by a rich variety of habitats, including primary rain forest with a closed canopy (e.g. with Entandrophragma utile, E. candollei and E. cylindricum) and open understorey layer, forests dominated by dense formations of Marantaceae, forest clearings and savannas on the hilltops (e.g. with Hymenocardia acida, Annona arenaria or Hyparrhenia diplandra).

UNESCO: Biosphere Reserve Information