Barcelona's only remaining tram system takes riders to the Tibidabo funicular.

This mansion oasis contains gardens, sculptures, and fountains just off the busy Plaça Kennedy in Sant Gervasi.

A once grand hotel now sits eerily abandoned in the Catalan countryside outside Barcelona.

Mountain where Jesus was first tempted by the Devil.

An abandoned settlement where the workers were driven away by pollution from their own employment

Abandoned waterpark turned counter-culture mecca.

This abandoned racetrack looks like it is set to hold competitions in the apocalypse.

A once-secret library of Freemason history in Catalonia.

This store decorated with Japanese and underground pop culture items has been the centre of Barcelona alternative fashion scenes for more than a decade.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

For one day every month Barcelona's Estació de França transforms into a market for model trains.

A cemetery in Barcelona's Poblenou district is home to this touching funerary statue, which depicts death in the form of a winged skeleton.

The unexpectedly beloved remnants of a controversial thermal power plant.

A remote mine in sedimentary rock was called the richest copper ore deposit in Arizona Territory

Tom Thumb's carriage is among the highlights of this unique collection of horse-drawn vehicles, donated by a carriage connoisseur and tucked away inside beautiful Morven Park

Tucked away on Somerville Avenue is a curated mycological gallery.

Scenic semi-abandoned bridge with easy access

A commemoration of child soldiers during a fearful battle of the Civil War.

This marker at the entrance to the Humphreys Engineer Center honors the former Chief of the Army Corps of Engineers.

Dedicated to a U.S. Army lieutenant colonel who was also a bird watcher and artist.

This homestead was occupied by Union soldiers, who believed the owners were signaling Confederate forces.

The well-preserved remnants of a bridge that once made up a WW1-era military railroad.

A piece of the Ludendorff Bridge, also known as Remagan Bridge, calls this military base home.

One of the Treasury Building's original columns now sits as a garden monument in the middle of a busy military base.