The only Bahá'í house of worship in North America and one of only a handful worldwide.

The sixth of London's "Magnificent Seven" cemeteries, and a source of unlikely inspiration to Beatrix Potter.

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

The trials and tribulations of marking Poe's grave.

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

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

At the right time of day, sunlight floods through the roof of this cave and illuminates the small pavilion hidden within.

Derelict airplane bodies serve as both home and income for three Thai families.

Walk through depictions of the torture inflicted on those who go to Buddhist hell.

A limestone wonderland of water and subterranean secrets.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

This cairn marks the only place where Central European Time, Eastern European Time, and Further-eastern European Time meet.

Tourists who rely on a transit map to find the iconic Beatles location often end up in a far-off neighborhood.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

This whimsical winery by Antoni Gaudí looks ripped from the pages of a fairytale.

This Netherlands museum holds a gloriously mechanical collection of ornate musical automata.

Romania's "Red Ravine" is a little-known natural wonder that bears a resemblance to the Grand Canyon.

This centuries-old Italian chapel hangs midway down a sheer cliffside.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

Mirrors and glass shards cover every inch of this arrestingly beautiful mosque.

The last woman executed for witchcraft in Europe is remembered in this Swiss museum.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

Staves, storm-calling, and of course, necropants.