The original goat tower, the one that started it all.

Go surfing on this urban wave, "hacked" by local surfers.

The plunge pool is a surviving relic of a rowdy royal residence.

The fences outside some of South London's estates are made from recycled World War II stretchers.

A quirky statue in Bermondsey made by 100 public participants with goggles, chisels, and mallets.

Climb inside an iron crystal magnified 165 billion times its normal size.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

A little sculpture with a large wardrobe.

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

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

Amid the rubble of Aleppo's Old Quarter, part of a historic market has been restored and re-opened.

One of the oldest and largest castles in the world.

Metal horses galloping through a London fountain provide a link to the city's past.

One of the largest wooden constructions in Europe was meant to be a casino, but soon became an orphanage.

Legend says if you stick your thumb in the hole and it gets wet, your wish will be granted.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

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

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

A marvel of Byzantine engineering under the streets of Istanbul.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

A memorial to the only dog ever officially enlisted in the Royal Navy.

An abandoned water park overtaken by the dunes.

This small island off Lambert's Bay is home to more than 2,000 Cape gannets and is the only such breeding colony open to the public.

Bizarre living fossil only grows in a small chunk of the Namib Desert.