This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

Centuries later, the victims of Great Britain's greatest hysteria are finally being remembered.

Small and slightly hidden, the American Writers Museum is preserving the legacy of America's finest authors.

A winding cave grotto walkway built to provide employment for veterans after World War I.

Brace yourself for the slowest, scariest, most spectacular drive, down the Drakensberg Escarpment.

This unique bridge curls up like a caterpillar to let boats pass and then unfurls again to span a small canal.

This giant wooden treehouse within a sprawling garden has its own eatery.

The controversial final resting place of the equally controversial first president of Turkmenistan.

A monk-run winery inside a Buddhist temple celebrates Japan's crown grape varietal.

Heralded as one of the prettiest castles in all of Czechia.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

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

The largest source of fossilized insects anywhere.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

The largest self-built castle in the U.S., six decades in the making.

The Dead Sea Scrolls were discovered in the ruins of this ancient monastic community.

This scenic fortress dates back at least 2,400 years to the time of Magna Graecia.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

This high desert botanical garden is a unique display of Northern New Mexico's geology.

Life-sized sculpture of a blue whale made of hand-recycled plastic trash.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

Thousands of mounted insects, and some live ones, hide within an otherwise ordinary shopping mall.