Tel Aviv's popular neighborhood went though endless waves of transformation.

Squeezing inside this deep, narrow canyon reveals a festival of desert colors.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

A "Texanic" (gigantic Texas) collection of Art Deco architecture at Dallas' historic Fair Park.

No one knows the meaning behind this giant sculpture of a nude woman with a fork riding a rooster in Havana.

His music once banned in Communist Cuba, John Lennon is now immortalized in bronze by Castro, who considers Lennon a "fellow dreamer."

Once a favorite playground for the world's most illustrious guests, Hotel Nacional's secret weapons and bunkers reveal a more menacing side to its golden history.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

In terms of history and architecture, this is one of the most remarkable cemeteries in the world.

A Cuban artist reclaimed his impoverished neighborhood as a dreamy folk art kingdom.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

A hidden church in a hidden courtyard tells the story of the Miracle of Amsterdam.

An ancient tunnel in Jerusalem built to redirect water in the event of a siege is one of history’s great architectural innovations.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

An architect's childhood fantasy treehouse made real.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

Amsterdam's former hotspot for public executions and dissections.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.