This memorial park stands on the site of one of the largest mass executions of the Second World War.

A sinuous path among steep cliffs creates a stunning sight in southwestern Serbia.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

Structure built from the skulls of vanquished foes.

This 15th-century Serbian Orthodox monastery also contained a school for illuminating manuscripts.

This outcropping was once home to a medieval monastery destroyed during the Ottoman conquest.

Legends of treasure and spirits flow from this this fairy tale-like oasis.

Remember that scene in the Matrix, when Neo is in the big white room with all the weapons flying by? Well, this is what it would look like if he had wanted trees instead of guns.

This small, rural pioneer cemetery is full of interesting grave markers.

Instead of fruit, the branches of this tree are brimming with hopes and dreams.

Nestled between a college and a golf course, the garden is home to more than 2,500 rhododendrons.

Hundreds of handmade critters fill this tiny window gallery in the heart of Portland's Alberta Arts District.

Shakespeare has been brought to life in this open air theater for the better part of a century.

The short-lived railroad town in central Oregon has been abandoned since the 1930s.

A delightfully quirky blend of oddities spread throughout an old 1920s bank.

The eerie remnants of an ancient forest were hidden under the sand for centuries.

A collection of colorful dinosaurs hidden in an actual rainforest.

Their motto is, "We've been bonkers for hats even longer than you have!"

An institution that preserves the history of institutionalization.

This lake in the Cascades lives up to its name, disappearing down a hole every spring.

This frequently-photographed waterfall takes only a short hike to visit.

A heavenly experience, right here on Terra Firma.

A beautiful 62-acre Catholic shrine and botanical garden.

The collection is housed in an exquisite mansion that makes you feel like you've been transported to an Italian villa.