Paths are maintained, but trees have taken over plots.

Spend a hour meandering, breathing, and learning along this lovely untouted path that connects historic gardens.

The oldest building in Charleston was used to store gunpowder during the American Revolution.

Once the most flame resistant building in the country, the South Carolina Historical Society building was almost burnt down in a fire.

A stack of stones steeped in Irish folklore, much like the hero they're connected to, hide in plain sight.

In the middle of a busy airport, a statue honoring the astronaut who told Houston that Apollo 13 had a problem.

Wooden pavers represent a 17th-century barrier that gave Wall Street its name.

Unrepaired walls from a 1920 anarchist bomb attack.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

A once-groundbreaking power plant turned into a hotel and mini-museum of archeological and geological wonders.

These light, hollow rolls have been linked to Acadia National Park since the 1890s.

The world's largest rotating world.

The most photographed house in Maine looks good enough to eat.

Carrying on the legacy of a short-lived experimental school tucked away in the mountains of North Carolina.

This bridge was constructed from the rubble of the infamous Bastille.

The remaining relics of the patroness of Paris lie in a chapel under a striking double spiral staircase.

Paris' linguistic guide to the international language of, yes, love.

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

Montmartre's sole surviving windmill became an iconic landmark for 19th-century painters, artists, and bohemians.

The oldest and smallest cemetery in Paris is only open to the public twice a year.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

This demon atop the Notre-Dame de Paris looks utterly bored.

The subterranean "lake" below the Paris opera house inspired the Phantom of the Opera's lair.

A fearsome dragon clings to a corner of Munich's city hall.