Made of 41,900 pieces of mosaic, it took two years to piece together this giant egg.

This giant wire frame man sculpture is crouched in contemplation.

While most bridges allow roads to pass over water, this one allows water to pass over a road.

Four alabaster giants contemplate the tides on the shore of Denmark.

Nearly 40 miles and 1,000 years of limestone mines under Denmark.

This huge industrial sculpture looks like a UFO and a factory had a baby.

This Danish art forest places loud works of contemporary art among the pensive silence of nature.

The final home of the legendary Danish sailor said to have lived to be 146 years old.

A symbol for the opposition to nuclear power around the world.

A public display of random paleontology.

This colorful artistic feature atop a Danish art gallery allows visitors to stroll through a rainbow.

Albert Einstein's head sticks out of a snail shell stacked on a rocket in this truly bizarre monument to the scientist.

Live out your childhood construction fantasies in this one-of-a-kind gyrating hotel.

Building Men of War and Indiamen from Holland's Golden Age.

Home to the world's oldest functioning orrery.

The South's nickname was supposedly born at a former bank in New Orleans' French Quarter.

The world-record holder for the longest bridge stretching continuously over water.

A treasure trove of rare and exquisitely detailed antiques

Once defending the city of New Orleans from invasion by sea, this fort faces an uncertain future.

The crumbling remains of a 19th century fortess.

The only rotating bar in New Orleans has been slowly spinning since 1949.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.