Along a California highway is a kind of Jurassic Park made of metal.

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

James Turrell's total color immersion art installation, hidden on the top floor of a luxury handbag shop.

An exotic wildlife habitat right off The Strip.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

This vintage animatronics show is the Vegas version of a walk through the woods.

Sitting on an Italian hilltop is this surreal fortress built by the mad inventor of electrohomeopathy.

Architectureal fantasy quarter of Rome.

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

A burial vault located under Tiber Island in the middle of the Italian capital.

This gallery commissioned by Cardinal Spada is known for its magnificent optical illusion.

In the early Roman Empire, people deemed traitors and criminals were tossed to their deaths from this rock.

Its interior is adorned with some of the best examples of early Christian mosaics.

A wunderkammer of curious objects and intriguing art nestled within a hub of ancient Roman sites.

Charles Dickens was not a fan of the ghastly wall dressings in this 6th century church.

The "Greatest Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.

A huge enchanting public park just outside the ancient walls of Rome.

One of the most important yet well-hidden museums dedicated to the history of medicine.

An abandoned Roman salami factory has found new life as an art space home to 200 squatters.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

This delightful little museum is dedicated to only one thing: pasta.

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.