This historic streetcar system has been running since the 19th-century.

A small but charming botanical garden that contains many exotic plant species.

An abandoned tuberculosis hospital said to be haunted by the patients who died within its walls.

A replica of the Roman emperor in glorious full color.

A small Portuguese cottage formed between boulders in the countryside.

These rock drawings in the Côa Valley also create an ancient optical illusion.

A chunk of the "true cross" is held in this small Portuguese church where modern day exorcisms are said to be common place.

One of Europe's largest groups of dolmens remains largely off the typical tourist track.

You can cross from one country to another in a single hop on this little bridge.

Perhaps the most spectacular grotto along the Algarve coastline.

This unassuming chapel in Portugal plays host to a ghoulish collection of bones.

This small chapel is built of human bones and decorated with a golden skeleton.

Dead weights honor the dead of Portugal's fishing industry.

For more than two centuries, the canopy of this venerable tree has been a haven for songbirds and lovers.

One Portuguese poet described this cape, the westernmost point in mainland Europe, as "where the land ends and the sea begins."

This now abandoned restaurant provides some of the most amazing views of Lisboa.

A windswept necropolis carved into the rocks overlooks the "most Portuguese town in Portugal."

Houses are tucked between, on, and underneath giant boulders.

Panoramic views from the mountains over a facility built to provide tuberculosis patients with fresh mountain air.

A glacial valley filled with silver beech trees in the mountains of Portugal.

This gaping hole in the middle of a remote mountain lake looks like a portal to another dimension.

Site of one of World War I's most horrific scenes.

Descend into the tunnels to experience the life of a coal miner.

This abandoned Belgian fortress is purposefully being left to nature.