An icon of the city, this chapel features an amazing dome ceiling and offers panoramic views.

Oddly shaped rock formation, misassociated with a nearby utopian community.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

According to local legend, a tree grew from the stake that killed this alleged vampire. In reality, he probably died from influenza.

Toss a Frisbee through the ruins of this Colorado gold mining town.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

Site of James Cook's historic observations of the 1769 transit of Venus.

This bridge was designed to connect a road that never came to fruition.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

Pyramid home to an obscure religious group that practices modern mummification.

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

The huge collection of paintings of the American West is one of Denver's best-kept secrets.

A seven-story 1920s mausoleum outside Denver houses thousands of remains.

This grand stone tower was dedicated to a famed American humorist almost by coincidence.

Doris Duke's lasting collection of Islamic Art, hidden in a Hawaiian paradise.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

Here lies Lilly E. Gray, an alleged "victim of the beast," but the reason long remained a mystery.

A downtown park built on top of unclaimed graves.

A stunning cemetery famous for its extraordinarily delicate & lifelike mourning sculptures.

A Bhutanese temple gifted from the isolated Himalayan kingdom is now a surprising cultural gem located at the University of Texas at El Paso.

Alaska Natives have lived on this tiny isolated island in the Bering Strait for over 5,000 years.

Final resting place of Antarctic explorer Ernest Shackleton.

This Japanese-inspired labyrinth of hot springs is hidden in a Chilean forest.