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.

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

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

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

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

This building served as the first customs house in modern Greece.

This 18th-century former mosque held the first Hellenic Parliament.

This building was once the most magnificent mansion in Nafplio.

Public water fountains built during the Ottoman Era still stand throughout this seaside town.

This slumbering beast honors the Bavarian soldiers who died in Greece during a 19th-century typhoid outbreak.

A staircase made of gravestones leads up to this church built into a giant rock.

This church is dedicated to the patron saint of seafarers.

The historic building has preserved human organs, unusual hexagrams, and scars from a political assassination.

This 15th-century island fortress later served as home to the executioners no one wanted to live near.

This futuristic German television spire is actually the world's largest digital clock.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

A little sculpture with a large wardrobe.

Meet the bronze beloved pet to a family of famous peeing statues.

Cozy basement bar sports an inventory of over 2,000 beers.

Along the edge of this fountain are 365 smaller fountains that represent the days of the year.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

This statue took 60 years to complete.

This enormous gold Buddha statue was hidden inside a stucco decoy for centuries.