A pink cottage covered in hearts served as a haven and a resting place for LGBTQ activists.

The restaurant keeps a hidden séance room on the second floor and reserves a table for the spirit of the former owner each night.

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

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

This bridge was constructed from the rubble of the infamous Bastille.

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

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

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.

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

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

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

The world's most active stratovolcano is almost always erupting.

A mysterious ancient elephant said to possess magic powers is now the symbol of a Sicilian city.

The ruins of the largest gladiatorial school in Rome are largely hidden under modern streets.

Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

Don't be fooled by this fake medieval facade even if it is almost 300 years old.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

This medieval church tower has maintained its clockworks since the 16th century.