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

The home-turned-museum of Barış Manço, the mustachioed Turkish Elvis for children.

Quite possibly the oldest love poem known to humankind.

This shuttered power plant is now Turkey's first industrial archaeology museum.

This half-forgotten fortress was constructed by the Ottoman conqueror of Constantinople.

The eclectic home of a leading Turkish architect is a gorgeous piece of eye candy.

No one is sure if the world's fourth-largest diamond had been found in a rubbish heap or was pawned by Napoleon's mom.

This crucial gathering spot along the "hippie trail" still displays old notes between traveling beatniks and backpackers.

Climb a steep hill in 90 seconds on the second-oldest urban subway in the world.

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

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

This museum was invented in a novel before being made real by the author.

Step back in time and witness the fall of Constantinople.

A small etching on the white marble parapet was written in runic script by a Viking mercenary.

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.

The ornate miniature mansions were built for Istanbul's feathered residents.

A marvel of Byzantine engineering under the streets of Istanbul.

This ordinary street was made infamous by a legendary visit from the devil.

The largest bottled beer collection in the world holds over 22,000 unique beer bottles.

This sublime architectural marvel is a rare example of an expressionist church.

An ultra-modern diversity park in Denmark has turned an entire city block electric pink.

The crown jewel of the Queens Museum is a nearly 10,000-square-foot architectural model of the city originally built for the 1964 World's Fair.

This enchanting rainforest hotel looks as though it grew from the forest itself.