This lavish room at NYC's French Embassy is a rare relic from the end of the Gilded Age.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

During the holidays, a vintage subway train whisks New Yorkers back in time.

CERN's beautiful, bending sculpture is a tribute to the spread of knowledge.

Large Hadron Collider and the Birthplace of World Wide Web.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

The artist and New York City icon lived, worked and died in this converted carriage house owned by another iconic artist, Andy Warhol.

A bit of retro transportation flair preserved in the world's largest department store.

Elevated freight railway turned wildly successful urban park.

New York's unstoppable progress turned this cemetery into the smallest burial ground in the city.

Named the fifth most beautiful building in America in 1885, this former courthouse boasts the best view in the Village.

Try not to get slimed in Tribeca.

America's oldest Eastern European synagogue provided the immigrants of crowded Lower East Side tenements a space of sanctuary.

A strangely angled West Village home is the only monument to an explosion that took the lives of three American revolutionaries.

A hidden "place of interment for gentlemen."

Though many were skeptical at first, these animal-specific routes across the Trans-Canada Highway have been a major conservation success.

A controversial blue hoop has been puzzling freeway drivers since 2013.

The New Central Library is a masterpiece of contemporary architecture in the midst of downtown Calgary.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

One of the largest trees of its kind in California.

The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.

Now housed in a museum, this giant pink elephant stood in downtown Seattle for more than 60 years.

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