This banal Parisian entranceway is not what it seems.

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

This 18th-century sundial was designed to calculate the date of Easter each year.

Got apples?

The historic Masonic Lodge in which the first-ever female Mason was initiated.

The recovered bones of martyrs slaughtered during The Terror are on display in this church crypt.

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

The ruins of an ancient Roman tomb hidden in the basement of a trendy clothing store.

This gem is often wrongly overshadowed by the larger, newer Metropolis church in Athens.

The railway carts travelers to central Athens's highest peak, which offers stunning vistas of the city.

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.

150 or so scrounged-up lamps, chandeliers, and lanterns light up this alley in central Athens.

A one-of-a-kind collection of a unique medium.

A snapshot of the city's fascinating voodoo culture.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

The mall's looks were inspired by the cowboy extras who used to meet up—and cause real trouble—at this Hollywood hub.

The blinking light atop the iconic landmark has been sending secret messages for decades.

This centerpiece of the Hollywood & Highland shopping center is a recreation of a long-lost movie set.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

A three-story, three-dimensional hobo clown in a tutu welcomes CVS shoppers.

The last orange grove of the San Fernando Valley is owned and protected by CSU Northridge.

Beautiful Victorian buildings from L.A.'s forgotten architectural past.