Under a church hides a forgotten 13th-century ossuary containing the remains of around 2,500 people.

The 19th-century pharmacy (now a used bookstore) was featured in James Joyce’s "Ulysses," and has changed very little to this day.

Ordinary art transforms to extraordinary thanks to locals' quirky sense of humor.

An important pilgrimage site for pagans and early Christians, named for a Celtic goddess-turned-saint.

A Frankenstein blend of science and art allows one tree to produce 40 different types of stone fruit.

The grounds of this Jacobean estate contain one of the oldest mulberry trees in England.

This massive chalk hill carving is one of England's most beloved giant horse geoglyphs.

At the United Kingdom's only residential library you can sleep among the books.

This giant geoglyph of mysterious origins is now the site of neo-pagan rituals.

Once in disrepair, this popular Texas stop along iconic Route 66 has been restored to its past glory.

This strategically placed hill fort has served defensive forces from the Iron Age up until the 20th century.

The 16th-century church was kept in its ruined state as a reminder of the casualties of World War I.

This Victorian graveyard in Leeds is a macabre collection of beautiful tombs and memorials.

The tower claims to be the world's only pagoda made entirely from Myanmar's lucrative gemstone.

The oldest and smallest cemetery in Paris is only open to the public twice a year.

The world's tallest box hedge is found in a delightful garden.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

Trimmed trees grow alongside the graves like topiary tombstones.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

A bike train runs along a disused railway line through the tranquil French countryside.

This home on a quiet suburban street is completely covered with vibrant mosaics.

These ancient sunken lanes were naturally tunneled into the soft ground by countless footsteps.

The personal charnel house of Anton Bruckner.

An Austrian house of bones filled with hundreds of intricately painted skulls.