Pompeii's less famous neighbor is still revealing her secrets.

This subterranean necropolis holds three floors of antler-dug grave caves.

This Stone Age solar temple aligns with the sun on each equinox and solstice.

Ancient mysterious ruts carved in the bedrock.

Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

The ancient latrines of the Greeks, in all their public glory.

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

This legendary city has been a tourist attraction for centuries.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

A cathedral resurrected from the ashes of one of Europe's greatest urban fires.

A former imperial sea-fortress and Soviet prison.

Disused seaplane hangar gets a second life as the jaw-dropping home of Estonia's museum of maritime history.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

3,000 market stands in five former Zeppelin hangars.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

A 20th-century picture show in 3-D.

Bohemian paradise covered in majestic forests.

This mysterious and once-grand memorial still embodies a remarkable architectural vision.

Formerly known as the Malay Quarter, Bo Kaap is a colorfully-painted suburb located in the “Mother City” of South Africa.

Ancient artists in the middle of nowhere.

The largest known meteorite on Earth was too big to move.

Raging waters have created a strange geological site that looks like something off of a progressive rock album cover.

In Namibia there is an installation that explores the intertwined linguistics and existential beliefs of an imaginary community.