Standing atop 2nd-century Roman ruins, this church is one of the oldest and most iconic in Old Cairo.

Located near Cairo's El Korba district, the abandoned mansion continues to inspire mystery and rumor throughout the city.

Known as the Sistine Chapel of Egypt, this tomb houses some of the most well-preserved paintings in Egypt.

Source for a sizable portion of Egypt's freshwater supply is more than an optical illusion.

A preserved oasis with traditional Andalusian-style architecture and beautiful views of the Nile.

The deadliest diving spot in the world is also a stunning geological marvel.

An abandoned outdoor movie theater in the Sinai desert.

The massive cave church of Cairo's Zabbaleen community is one of the largest Christian churches in the Middle East.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

One of the most well-preserved temples of ancient Egypt.

A massive work of modern art that appears to be a crop circle in the middle of the desert.

An alien landscape of chalk-rock in the Egyptian desert.

An endless sea of white conical domes.

Ozymandias’ time-keeping temple.

An ancient instrument used to measure the waters of the Nile so Egyptian farmers would know whether to expect famine or flood.

An 11th-century medieval castle cascades over the town of Numão.

A fortress off the West coast of Portugal that dates back to 1502.

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

Nestled in the mountains of Portugal is a tiny village made almost entirely of schist.

This castle has links to Portugal’s founding and struggles for independence.

A lush oasis full of vibrant plants and striking geometric displays.

A micronation on an islet along the coast of a Portuguese island.

A neolithic tomb converted into a tiny chapel.

Rainwater transformed this old quarry into a peaceful pond you won't find in most tourist books.