High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

This monument is a stark reminder of the horrors of the Zanzibar slave trade.

A modern tower, symbolizing the legend of a golden egg on top of the tree of life.

An entertainment center in a huge transparent tent.

Nicknamed Kazakhstan's Grand Canyon, this natural wonder lies east of Almaty near the Chinese border.

Iconic pyramid from famed British architect Norman Foster designed to represent all of the world's religious faiths.

A brilliant turquoise lake in the mountains.

One of its engravings is believed to be among the first representations of medical and surgical instruments.

The largest known Ancient Egyptian obelisk.

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

The bank's whimsical shape was inspired by a child’s toy.

This Bangkok high-rise looks like a rudimentary LEGO elephant.

On stormy days debris from this unfinished and abandoned skyscraper rains down on the Bangkok streets.

The ruins of a medieval monastery named after a type of tree.

One of the tallest bell towers in Italy plays a particular melody at just two times each day.

According to tradition this is the oldest church in Venice, but its actual age is a mystery.

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

Fortified medieval tower house with lovely roof garden.

This small, ancient Roman temple was once a church dedicated to the patron saint of penitents.

These gutted monastery ruins still stand proudly in the middle of the Italian countryside.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

This ancient market is often referred to as the oldest shopping mall in the world.

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

The best preserved Paleochristian basilica in Rome hides a number of oddities and secrets.