This chapel on a cliff is renowned for its healing powers and was founded on the site of a supposed divine intervention.

A park where people have been going to feed friendly pigeons since the 18th century

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

This colorful gate stands as an entrance to the walled city of Old San Juan.

Legend tells how a Spanish soldier disappeared from this isolated sentry box without a trace.

Rare and gorgeous birds abound in this protected wildlife sanctuary.

This work of art by Matthew Mazzotta resides in this park dedicated to the first black legislator in Idaho.

The largest outdoor art gallery in the Northwest United States.

An Egyptian-revival style film house in Boise, Idaho.

A small section of Boise, Idaho maintains the unique culture and traditions of the Basque people.

Jail from the 19th century that was built by inmates.

These black pillars of volcanic basalt seem to call mountain climbers with an unbreakable siren song.

Two geologically young and nearly circular volcanic subsidence craters, each about a half-mile in diameter, abruptly break the nearly featureless Snake River Plain.

This Idaho state park boasts the tallest single-structured sand dune in North America.

At the site of the most dangerous crossings on the Oregon Trail, a museum explores the complex history of westward migration in America.

Some 46,000 years ago, a volcanic eruption led to a flooding event that carved this short canyon with steep vertical walls.

The only bridge in the United States where BASE jumping is legal without a permit year-round.

These falls, sometimes called the "Niagara of the West," still put on a good show at the right time of year.

Where the famed daredevil attempted to launch himself across a canyon in a custom-built rocket.

One of the "twins" in these falls on the Snake River was sacrificed for hydropower generation in the 1930s.

Sunset-colored dunes of volcanic ash make taking a poor photo impossible.

A large lava tube that can be walked through with no special equipment.

A whimsical display of massive metal sculptures made from recycled materials.

The flow from this waterfall sometimes comes out of springs below its rim.