This historic Boston building has gone from personal estate to porn theater and back again.

This impressive Boston holy house is the American mecca for Christian scientists.

Millions of numbers carved in glass represent the tattoos forced upon victims.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

Home to items never before seen by the public.

The site of the climactic scene from the classic horror film is now a historic landmark.

The Corinthian columns that towered over Abraham Lincoln’s inauguration stand proud.

This surprising museum tells the story of modern Malaysia through the history of its law enforcement.

This nightlife venue and cultural center keeps a unique Ethiopian musical tradition alive in the nation’s capital, but breakneck urban development threatens to shut it down.

A powerful tribute to the victims who suffered under Ethiopia's most devastating regime.

An enormous public square and parade ground built to celebrate Ghana's independence.

A marvel of Byzantine engineering under the streets of Istanbul.

The medieval center of the Islamic world was also once the seat of Saladin's sultanate.

One of the tallest buildings in Africa provides a great view of Johannesburg's unique geography.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

A fantastic place to see murals, and an important location in the history of Toronto's legal street art scene.

After sunset the heart of Zanzibar's historic Stone Town neighborhood transforms into a culinary playground.

Freddie Mercury's childhood home is now a monument to the iconic Queen rockstar.

In Zanzibar, a historic 19th-century palace is a reminder of the world's shortest war.

This statue once earned the distinction as one of the "Three Major Disappointments of the World."

Singapore's landscaping project is home to 18 incredible Supertrees.