One of the few places in Portugal where the Celtic ritual of wearing large wooden masks is still practiced.

An icon of the city, this chapel features an amazing dome ceiling and offers panoramic views.

A hidden three-foot-wide house separates these two regal churches.

This giant sculpture made of trash is a critique of society's wastefulness.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

The oldest giants in Catalonia are now displayed in a 14th-century Gothic church.

Revitalization efforts converted a former U.S. military heliport into a sprawling urban park.

Germany's tiniest institution of education.

World's only telecommunication tower with a wooden pinnacle.

Over 120,000 curious objects that have shaped our modern world.

At 207 feet, one of the world's longest continuous escalators.

A celebrity from the late Cretaceous period.

Deep into the lower floors of Pike Place, find a date with fowl fate.

Though strikingly beautiful, Seattle's other railway station is now largely forgotten.

This grand old 80-foot sequoia towers above the buildings in the city’s retail center.

A community gathering place that once housed half-ton tanks and the World's Fair.

This Puget Sound military post has a long, turbulent history as a gateway to the Pacific.

A monument stands at one of the starting lines of the Trans-Canada Highway, formerly the longest uninterrupted highway in the world.

This Italianate house was the childhood home of the prominent Canadian painter, Emily Carr.

Greenery cloaks this serene sculpture inspired by the famous Lost Gardens of Heligan.

The narrowest street in Canada was once a spot for dastardly doings, now a historic piece of Chinatown.

First flying reptile discovered in British Columbia was for years forgotten in a cabinet.

Abandoned former poorhouse, bible college, and haunted house in an Ohio hamlet.

Constructed from the ruins of a former glass factory, this park incorporates the old with the new.