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

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

In the past, Renaissance sex workers were encouraged to entice customers on this bridge.

Housed in an old church, this hunting museum holds a collection of mythical bird-rabbit creatures.

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

A serious museum dedicated to two German comedians.

The telescope that discovered Neptune.

This beautiful 19th-century temple stands atop the ruins of its predecessor.

One of São Paulo's tight urban intersections has become a haven for graffiti artists ever since a single Batman started the trend.

A 125-meter long "tribute to the Brazilian people."

This singular art museum in São Paulo is unique inside and out.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.