Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

The Boston square dedicated to the dark poet who was born nearby.

Its unique collection details the history of the state's svelte railroads.

Tucked away on the second floor of a small town library is one of the great private Victorian taxidermy collections looking today very much like it did in 1909.

Oldest building in California still in use.

Once close to extinction, there is no shortage of elephant seals on the beaches of Año Nuevo State Park.

A hotel and restaurant serving as the mecca of kitsch.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

This family mausoleum is steeped in symbolism and looks more like a fantasy location than a grave.

Orcas on display and in the water.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Medicinal spa created with the discharge from a geothermal energy plant.

Walk in the footsteps of the gods and straddle two tectonic plates.

Cavernous opening completely encased in Karst limestone.

Where the first "expert riders, willing to risk death daily" for the Pony Express were recruited.

The California capital city once stood 10 feet lower than it does today.

The capitol city's oldest existing cemetery.

A working miniature city designed to teach kids about safety and presumably city planning.

Statues of Ramona Quimby, Henry Huggins, and Ribsy the dog in the park where their adventures "really happened."

This sandstone mansion was the home of two of Oregon's most important pioneers.

A beautiful 62-acre Catholic shrine and botanical garden.