Large Hadron Collider and the Birthplace of World Wide Web.

These spooky and unusual stone formations create an underworldly landscape.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

The world's oldest individual clonal tree looks like a wimp despite standing tall for 9,550 years.

It houses the remains of a 17th-century version of the Titanic.

The world's first ice hotel is still one of the most elaborate and beautiful.

The world's largest model of our planetary system.

Bring your hiking shoes, wool socks, and thermal underwear for a stay in these cozy forest huts.

A series of modernist treehouse hotel rooms grace the outskirts of an Arctic forest.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

Home to the "Circus" trees created by Axel Erlandson.

An Escher-inspired library dedicated to the wonders of the human mind, yet closed to the public.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

A storybook European village in Berkeley.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

A beautiful 62-acre Catholic shrine and botanical garden.

Remember that scene in the Matrix, when Neo is in the big white room with all the weapons flying by? Well, this is what it would look like if he had wanted trees instead of guns.

Quite simply the largest tree in the world (by volume).

A Bibliophile's Dream.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

Canyon walls shrouded in ferns.

This frequently-photographed waterfall takes only a short hike to visit.

A Swedenborgian glass church surrounded by redwoods sits perched atop a massive landslide area.

Olfactory delights in San Francisco's Botanical Gardens.