The geographical center of Budapest is marked with a 10-foot-tall stylized zero.

A two-way chairlift system between Zugliget and the highest point in the city.

Some 80,000 Delft Blue tiles line the inside of this Amsterdam walkway.

The largest known Ancient Egyptian obelisk.

This 7th-century monastery was sacked by Saladin.

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

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

The medieval center of the Islamic world was also once the seat of Saladin's sultanate.

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

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

Founded as a refugee camp, now a popular tourist spot.

Along the most northwestern point in Africa is an ancient cave surrounded by legends.

This stucco building in North Africa was the first American-owned property on foreign soil.

The oldest olive tree in Greece has been bearing fruit for at least 2,000 years.

A small island with shimmering pink sands, home to loggerhead turtles and rare plants.

This famous archeological mystery may be an ancient example of movable type.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

This millstone commemorates a gruesome tale that may have been the source of the city's name.

This chimerical bridge/tunnel appears to dead end right into the sea.

At this Arctic outpost, get to know members of the indigenous Sámi community and meet their herds.

This functioning parish church is also the site of many concert performances due to its wonderful acoustics.

The great polar explorer is remembered in this far northern town, where he embarked on his final expedition.

The world's northernmost aquarium looks like it has fallen over.