Enormous sandstone towers loom within a Czech forest.

Europe's largest natural bridge has a 19th century royal chateau built into its side.

Street artists transformed an abandoned air vent into the beloved Star Wars robot.

The ruins of an ancient Zoroastrian Tower of Silence believed to be the earliest example of the traditional funerary practice.

Once a bustling fishing port, this semi-ghost town is now more than 90 miles away from the shore.

This retro, UFO-like structure is a remnant of the Soviet-era circus.

This Russian religious complex is a Frankenstein's chapel that includes influence from almost all the major faiths.

Replica of mosque destroyed by Russia in the 16th century.

Russia's own leaning tower was built on a tragic historical fable.

A stunning Catholic cathedral built by a curve-loving communist in Brazil’s newly created capital.

A visionary, futuristic sculpture in Los Angeles that never met its extraterrestrial potential.

After millennia of erosion by sand and churning water this Brazilian valley now looks like a lunar fantasy.

This giant mural of Santa Muerte in downtown São Paulo reminds passersby of their own mortality.

A huge boat-shaped hotel with a blood red pool and other oddities.

The largest open-air contemporary art center in Latin America is a unique experience in the Atlantic Forest.

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

This massive Brazilian church is built like an angular, technicolor pyramid left by Mayans from the future.

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

Nine bronze hands protruding from a wall honor the student uprising that led to the fall of Czechoslovakia's Communist government.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

A surreal statue honoring Prague's favorite literary son.

An Orwellian sculpture with eyeball cameras watches passersby.

This doorless 20th-century elevator doesn't stop or slow down.

Countless grotesque faces stare out from this eerie Prague art wall.