See what remains of a once grand ancient Roman circus.

This small Milan street is filled with colorful homes and a rich history.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

Artistic tombs, monuments, and a beautiful "Hall of Fame" lurk inside this cemetery.

The train platform where Jews were sent to concentration camps is now preserved as a Holocaust memorial.

Before there were doorbells this bronze ear was installed for visitors to announce their arrival.

Small on the outside, big on the inside, this church is an astonishing act of visual deception.

Just across from the "Last Supper" painting is the famous painter's vineyard, a gift received for creating the masterpiece.

One of the world’s smallest bars, just 13 square feet, is brimming with speakeasy flair.

A life-sized mammoth sculpture marks the spot where the remains of a Columbian mammoth were discovered in 2005.

Rent out a glass igloo to watch the Northern Lights like you live in the future.

The “Thumb” of Mauritius provides a 360 degree view of the entire country.

This odd Chilean waterfall-cano hotel must be entered via a rope bridge.

White beach sands made of the remains of tiny, star shaped creatures.

A white Buddhist temple with a golden restroom.

A walkable map of the world, made from soil and stone by one man.

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

Fine dining 20 feet below the surface in the Indian Ocean.

An underwater restaurant, surrounded by a coral reef.