The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

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

A preserved portion of an ancient Athens barrier is displayed in a hotel basement.

This Ottoman-era church is hidden amid a busy tourist area.

According to legend, this ancient column contains healing properties.

These ancient ruins hide in plain sight next to a dessert shop.

This once architecturally advanced housing complex is now a haven for squatters that still bears the scars of war.

Legend says this sacred tree was a gift from goddess Athena.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

The ruined doorway is a portal to the building's turbulent and torturous past.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

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

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

Home to items never before seen by the public.

The U.S. Navy's last diesel-electric submarine rests half-submerged in the middle of Portland.

The only Native American museum along the Oregon Trail, run by the peoples who have lived on the land for generations.

A metal menagerie fills the yard of this museum and gallery, the work of Montana artist Bill Ohrmann.

A tiny art gallery in Sunnyside helps keep Portland weird.

The magic's in the hole!

No two pieces are exactly the same at Portland's hippo-themed hardware store.

This Portland shop is brimming with natural wonders, local art, and handmade goods fashioned from recycled materials.

The oldest tofu shop in the United States is a firm favorite with locals.

Gigantic private toy museum featuring among finest collections of antique mechanical banks in existence.

This garden is dedicated to a Portland cartoonist who specialized in dark humor.