Elevated freight railway turned wildly successful urban park.

Taking the subway here means doing so over a bridge located in the middle of an estuary.

This column celebrates Rome's victory over the Goths, and may be the oldest Roman monument in Istanbul.

Ancient serpentine sacrifice holder that has stood the test of time.

A marvel of Byzantine engineering under the streets of Istanbul.

Inat Kuća, or "House of Spite," is more than just an oddly named restaurant.

Oriental bazaar in the heart of Sarajevo.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

This historic cemetery was inaccessible for several years due to dozens of land mines.

A war-torn Olympic relic is being overtaken by graffiti and nature.

The place where World War I began.

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.

This private residence was the template for one of the most beloved television homes of all time.

This shop and studio is dedicated to the art of the book, from letterpress to bookbinding.

The oldest burial ground in the city, final resting place of city founders, Ohlone natives and murderers alike.

The tea room that pushed the boundaries of adorable straight into...we can't find the words.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

An essential stop before plundering, BYO Cutlass.

Tiki luxury on Nob Hill.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

An artsy hidden staircase leads to breathtaking views of San Francisco.

It was once the base for a series of domestic terror attacks.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.