This raised bulls-eye visible from space was the subject of an intense geologic controversy.

Natural sonic phenomenon comes with a grisly legend of murder and blood.

Over 1.3 million confiscated wildlife products fill this macabre menagerie of illegal animal specimens.

A New York–based physician returned home to Spain to build his own elaborate monument to Christopher Columbus.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

This fountain was designed to honor the man who helped bring water to Barcelona.

This cafe offers a curated collection of treats and tipples made by monks and nuns.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

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

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

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

These 100-year-old tunnels in downtown Provo house artists, restaurants, and a few surprises.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

This mural changes every few years.

This former wildlife sanctuary is being transformed into an art park.

In 1952, this restaurant began selling the Colonel's “secret” recipe.

Tucked away on a scenic trail, a modest memorial honors one of the greatest writers of our time.

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

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

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

When in Idaho, sleep in a giant potato.

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

The largest outdoor art gallery in the Northwest United States.