Bridge that died in war and was resurected.

Roman ruins top white travertine terraces formed by ancient hot springs.

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

Gladiators once walked this ancient, subterranean passage.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

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

This unassuming tree stump reportedly traces its roots to the famous pharaoh queen's reign.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

For more than half a millennia, this automaton has rung an hourly bell.

The most elaborate of 12 medieval arched doorways to the old city of Burgos.

This stop on the Camino de Santiago stands high above the underwater ruins of a medieval town.

This enormous censer uses a pulley system installed over 400 years ago.

This network of narrow, medieval passages has the most delightful name.

Follow the original medieval paths that wind through this intriguing section of the city.

These 20-foot jaw bones honor a time when the leviathan bones were a sign that whalers survived the hunt.

One part local history, 99 parts gruesome haunted house.

An architectural oddity hides in plain sight on this iconic London bridge.

This fairytale inspired, warped building houses restaurants, shops, and a radio station.

Walk along the medieval fortifications that have been protecting Tallinn since the 14th century.

A replica of the home of a famous fictional troll family.

An abstract monument to a symphonic composer.

A subterranean house of worship carved right out of the bedrock.

The original home of the Lego has a huge amusement park dedicated to the iconic plastic toy.

This unique architectural wonder is home to luxury apartments.