Beautiful public park off the beaten path and away from tourists.

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

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.

A preposterously luxurious hotel with gold-plated iPads, Rolls Royce chauffeurs, and a staff that trains by watching "Downton Abbey."

Be on the lookout for the symbolic insect all over the city.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

Climb inside an iron crystal magnified 165 billion times its normal size.

A little sculpture with a large wardrobe.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

Breathtaking and huge 430 year old maps of Italy.

Rome’s legendary peephole vista is also a former Crusader stronghold.

The yawning maw of this pagan visage is said to bite off the hands of liars.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

The big toe of this towering monument to a Croatian national hero is worn from years of superstitious rubbing.

A small marionette collection located within the dark cellars of an 11th-century Austrian castle.

The beautiful, ornate weather station is the most popular geocache in Salzburg.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Spain's largest bullring offers a unique glimpse at architecture and history.

The world's largest wooden structure.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

One of the most spectacular bridges in Spain spans a narrow chasm that divides the city of Ronda.