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

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

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

This ancient structure is widely thought to be the oldest intact pyramid in the world.

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.

A brutalist war memorial piercing through the rolling farm landscape.

A 19th-century relic of timekeeping.

From atop a hill at the center of Cape Town, a cannon has been signalling the time since 1806.

A large-scale steel sculpture entitled 'The Shadow Boxer' pays tribute to Nelson Mandela.

This small island off Lambert's Bay is home to more than 2,000 Cape gannets and is the only such breeding colony open to the public.

Nelson Mandela lived here with his family from 1946 until his arrest in 1962.

Environmentally crucial raptors like eagles and vultures are kept and protected in this massive sanctuary.

The world's largest impact crater is mainly eroded but still remembers the planet's violent history.

A mesmerizing sculpture marks the site where the activist was arrested after evading capture for 17 months.

The world's largest pineapple building honors Bathurst's favorite fruit.

An odd little fishing town that is inundated by tourists looking to be locked up in a cage and surrounded by great white sharks, because why not?

This road winds through the steep coastal cliffside offering spectacular views for those who brave the drive.

Raging waters have created a strange geological site that looks like something off of a progressive rock album cover.

Rusting railcars and locomotive equipment fill this Ethiopian train graveyard.

The oldest surviving wooden bridge over Rhine lets travelers cross easily from Switzerland to Liechtensten.

An unconventional and naturalistic sculpture depicting the artist marking his territory on an exterior faculty wall.

Did he come up with a theory of cosmic-ray showers while sitting in this bath?