Rising from the sea like a stone monster.

This 38-drawer structure claims the superlative title, but it isn't the world's only giant filing cabinet.

A forest wonderland caused by Burlington, Vermont's aggressive southwestern winds.

Montreal's giant farmer's market is a foodie's best friend, especially in the winter months.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

Every year, the colorful murals of Montreal get a complete makeover.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

Beautiful hillside Vermont cemetery with amazing funerary art.

This path is named for a mythical half-boar, half-deer creature that once roamed the Green Mountains.

Vermont's hills are alive with the sound of music at this historic hotel.

The national park was once a plantation estate.

A rotating cast of guys and dolls in front of a Washington, D.C. building.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

Home to items never before seen by the public.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

A 140-year-old castle with underground caves hidden in San Francisco.

A network of concealed passageways lies within a busy London Underground station.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

If there's another drive-through golf-cart bar in a bat-filled cave on top of a mountain, we don't know about it.

An actor's tribute to a former mentor.