Places natbikes Wants to Go

The enchanting archway is the only surviving portal into Dublin’s lost medieval wall.

One of Ireland's most infamous prisons for rebels including men, women and children.

This floating garden in the sky is straight out of a fairy tale, but the real thing is nothing short of magical.

One of Antoni Gaudí's least-visited works, an homage to Catalan patrimony that mixes neo-Gothic with Modernista forms.

Barcelona's historic 19th-century sewers, whose foundations were laid in medieval times, are open to the public for exploring.

A thin pane of glass keeps visitors from sliding off this futuristic skywalk.

Stay overnight in the world's most sleekly designed rabbit hole, free of charge.

Walk 2,300 feet above the ground on the "Troll's Tongue."

A serpentine highway twists and turns over the treacherous Norwegian Sea.

Norway has built what may be the world's most beautiful public toilet.

This giant boulder is pinched over a 1000-meter abyss by two mountains.

Home to three historic ships from the age of Vikings.

An intricately carved Viking church overlooks a glistening fjord.

This "preacher's pulpit" once used for pagan ritual, is home to a new, and dangerous ritual.

A unique spiral staircase that doesn't quite make it up to the top floor.

This Art Deco masterpiece has stood in for some of the most famous buildings in comic book history.

The collection of signage remembers the midcentury pushback against the new neon light.

This expansive bridge in the Canadian wilderness was originally just built for friends.

This quirky piece of naval artillery has been deafening Canadians for over a century.

While these wooden totems bear a striking resemblance to First Nations artwork of British Columbia, their actual origins lay on the opposite side of the Pacific Ocean.

Saved by a logger, this Douglas fir is one of the last great old-growth trees in Canada.

A museum dedicated to the history and exploration of both popular music and science fiction.

A walk through the historic city center, under the streets of Seattle.

A giant Troll lurks under one of Seattle's oldest bridges.