The remains of what was, not so long ago, the world's largest city.

Modest by day, illuminated majestically at sunset.

This ancient Hindu temple is covered in thousands of colorful statues and has a long mythological history.

The middle finger of modernity.

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

Renaissance villa and gardens complete with a tormented colossus.

A factory director designed what was the world's longest suspension footbridge in 1923 so his employees could get to work safely.

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

This quaint Italian town keeps losing ground as the sides of its plateau slowly erode.

Largest necropolis in the Mediterranean.

A 16th-century horror show built in a lovely Italian garden.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

This immaculate and historic water garden culminates in a massive stone dining table with an inset fountain for chilling the wine of the Cardinal's guests.

An old department store turned Nazi prison turned artist commune.

The famous winding walk at Chartres is surrounded in mystery and myth.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

Historic medieval fortified city in southwest France.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Cold war icon and onetime "hole" in the iron curtain.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Go inside to really appreciate this 500-year-old technological masterpiece.