This Gothic castle-like portal is a testament to the amazing craftsmanship of the navvies who built the railway tunnel.

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

A trove of history focused on Marks & Spencer, the British department store.

This unusual sculpture is sometimes partially, sometimes fully, submerged.

A series of idealized caves carved to entertain guests.

Legends say this red sandstone monolith and the dozens of smaller boulders that surround it were once a coven of witches—before a Scottish wizard turned them all to stone.

Abandoned for over 20 years, this Art Deco seaside swimming pool is a magnificent waste.

Bacteria and algae give the salty water its bubblegum hue.

Once the grandest synagogue in medieval Spain, it now stands as a memorial of the 15th-century Jewish exile.

Images of neighbors past and present guard the streets of this charming alpine village.

The tallest tower in Cáceres's Old Town.

An ongoing medieval tradition of communal pig husbandry is honored with a handsome granite sculpture.

The most powerful waterfall in all of Europe.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

The summer tourists on these cliffs are thousands of seabirds.

This boat represents the promise of undiscovered territory, a dream of hope, and progress and freedom for Iceland.

The poet’s tombstone keeps getting vandalized by her fans.

Artists made this mosque into a marvel of Ottoman baroque architecture.

This fortress dates back to the 6th century and is also the site of a controversial abandoned restoration project.

A solar-powered primary school inspires hope and experimentation in a country ripe for energy innovation.

A historical puzzle lies at the origins of this structure.

See gorgeous frescoes at this modest Byzantine place of worship.

St. John the Baptist's forearm is housed in this remote 11th-century monastery.

Depending on the region's rainfall, this church may be partially submerged.