An old trolley bridge was converted into a breathtaking garden bursting with colorful flowers.

Over 50 whirling pools left behind from the glacial age.

Palatial mansion estate used in films including "Flowers in the Attic" and "The Witches of Eastwick."

Friction between grains of sand cause a curious "singing" sound.

An 80-year-old house built out of newspapers.

An eccentric inventor's castle home with its own indoor weather system.

A former major munitions plant that has been converted into a sprawling art space.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

It's a pretty creepy lock-up.

A tribute to Ponce de Leon's supposed quest for eternal youth.

A statue honors the local legend that the devil helped build St. Mary's church after being tricked into thinking it was going to be a wine bar.

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

The largest 19th century panorama in the world still in-situ.

A monument celebrating the idea of reaching inaccessible places.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

Eighty million natural history specimens call this gargantuan museum home.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

This small museum gives visitors a chance to soak up the history of the "sponge capital of the world."

An ancient octagonal weather station named for the eight Greek gods of wind.

This mystical orb covered in strange symbols is thought to have been used in ancient Greek magical rituals.

Where commuters walk through remnants of an ancient Greek necropolis.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

Giant marble phalluses on the sacred island of antiquity.

Replicas of Apollo's leonine stone guard cats still line a sacred row in Greece.