The ghost town where the villagers refuse to leave.

These ruins in Volvi were once at the intersection of the Eastern and Western Worlds.

A sharp sculpture made of thousands of pieces of jagged glass.

The oldest cemetery of modern-day Athens blends the modern and ancient worlds.

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.

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

The hallucinogenic center of the ancient world.

Monasteries on rock pillars, once accessible only by frayed ropes.

An abandoned Byzantine fortress and notorious prison.

This sandwich shop has a century-old elevator behind a sheet of plexiglass.

The privately owned cemetery that holds room for Washington's finest when they step down from life.

Rumor has it the uncarved lump behind the three famous suffragists is reserved for the first woman president.

An atomic bomb-proof strongbox protects the U.S. Constitution from terrorists and thieves.

The house where John Wilkes Booth conspired with his co-conspirators.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

Home to items never before seen by the public.

Pillars made of 700 pieces of luggage climb to the ceiling of Sacramento Airport's baggage claim.

This 19th century train workshop is a treasure trove of railroad history.

A mysteriously dark cemetery monument fuels stories and legends galore.

A massive volcanic plug is now a protected area that hosts a number of bird species.

Where dioramas can follow you home.